The phrase "a reference for both" is correct and usable in written English.
It can be used when indicating that something serves as a source of information or guidance applicable to two parties or subjects.
Example: "The document serves as a reference for both the marketing and sales teams to ensure alignment in their strategies."
Alternatives: "a resource for both" or "a guide for both".
Therefore, this 40% fixed threshold was used here to serve as a reference for both cases of SBR = 6.4 and SBR = 49.1.
The THz transmission through a quartz substrate without bacterial layer is used as a reference for both samples.
Light work was used as a reference for both mentally and physically strenuous work, following previous procedures.
Normal male DNA was used as a reference for both cell lines (Cat. # G1471, Promega, Madison, WI).
As a reference for both assays, staphylococci were incubated simultaneously in plates without J774 cells, and the wells in these plates were treated as in the phagocytosis assay.
An external standard in a thin capillary, methyl diphosphoric acid (MDP, 2.3 mmol/l D2O, Sigma-Aldrich), was placed into the NMR tube to serve as a reference for both chemical shift (18.6 ppm) and phosphor metabolite quantification.
Use this as a reference for creating both antagonists and protagonists.
It is hoped that the chapter will be a useful reference for both practitioners and designers of information strategies in a business environment and will also serve as a guide for graduate students undertaking information management research inclined to the strategic deployment of information in heterogeneous business environments.
As design clients increasingly call for original and custom typefaces, Designing Type is a superb reference for both students and professional graphic designers.
When I first visited the university in 1985, the only research specimens of amphibians and reptiles in the collection were just a few from France, but now the research collection has grown to more than 50,000 Malagasy specimens, and serves as a valuable reference for both teaching and research.
Arranged according to the recognized mammal families, it will serve as a valuable reference for both students and professional mammalogists.
