The phrase "a practical reference" is correct and usable in written English.
You can use it when describing a source of information that is useful and applicable in real-life situations.
Example: "This book serves as a practical reference for anyone looking to improve their gardening skills."
Alternatives: "a useful guide" or "a handy resource."
The case presented in this paper can serve as a practical reference for the engineers practicing in the similar engineering field.
We present data from cases seen at our institution from 2004 through 2008 using this approach, to provide a practical reference for findings seen in daily diagnostic practice.
This work provide a practical reference for the safety design of the explosion venting.
A basic guideline and a practical reference value or design were attached to each architecture character.
Broadband absorption, efficiency enhancement and insensitivity to the angle indicate the dual interface nanostructure to be a practical reference.
This will be an invaluable finding aid for end-users of BABO, and a practical reference for librarians cataloguing Arabic titles.
This volume is a comprehensive, practical reference work for senior medical students and nurses as well as for the established nephrologist and transplantation surgeon.
These findings provide a clinical practical reference point, with scientific evidence that burn prevention during moxibustion is readily preventable.
Additionally, there is a section on clinical trials in pain research that is a useful and practical reference for anyone wanting to undertake research on cancer pain.
This paper provides a theoretical and practical reference for clinical translation of biomedical materials.
This research provides a theoretical and practical reference for the formulation or revision of the environmental standards, especially for the developing countries.
