The phrase "a reference number of" is correct and usable in written English.
It can be used when specifying or requesting a particular reference number related to a document, transaction, or case.
Example: "Please include a reference number of your order in your email for faster processing."
Alternatives: "a reference ID of" or "a reference code of".
Each displayed amount of food was assigned a reference number of portions (FSA, 2002) (Table 1).
Each food was assigned a reference number of portions based on the Food Standards Agency portion size scheme (FSA, 2002).
Kluyveromyces marxianus Y179 was deposited at the China Center for Type Culture Collection (CCTCC) with a reference number of M202031.
The animal experimental procedures were approved by Korea Institute of Oriental Medicine Care and Use Committee with a reference number of #13 095 and performed in accordance with the Korea Institute of Oriental Medicine Care Committee Guide lines.
This was done by illustrating the number of live animal imports and exports between 27 EU countries including the number of country contacts and numbers of livestock units (LSU, a unit that takes into account the age, sex, purpose of animals with dairy cows having a reference number of 1) moved determining the density of networks and similarities of networks between species.
The animal experimental procedures were approved by Korea Institute of Oriental Medicine Care and Use Committee with a reference number of #12-094 and #13-030, and performed in accordance with the Korea Institute of Oriental Medicine Care Committee Guide lines.
where (widetilde {c}_{0}) indicates a reference number concentration of particles in the suspension.
Approval for this study was obtained through the institutional review board of the University of Uludag with a committee reference number of 2016-16/11.
The plant material was authenticated by the Herbarium of School of Biological Sciences, Universiti Sains Malaysia, where a voucher specimen was deposited (Reference number of 11242).
The plant material was authenticated by the Rosa Mochel Herbarium from School of Biological Studies, State University of Maranhão, where a voucher specimen was deposited (reference number of 30).
After publication of the original article [1], the author realized there was a typographical error to the ICDD reference number of compound➀.
