APA (7th ed.) Citation

Cheng, W. H. E., & Santos, R. B. Analysis of some chemical methods for determination of penicillins.

Chicago Style (17th ed.) Citation

Cheng, Wing Hung E., and Rizalina B. Santos. Analysis of Some Chemical Methods for Determination of Penicillins.

MLA (9th ed.) Citation

Cheng, Wing Hung E., and Rizalina B. Santos. Analysis of Some Chemical Methods for Determination of Penicillins.

Warning: These citations may not always be 100% accurate.