APA (7th ed.) Citation

Hey, D. H., & John, D. I. (1973). Amino acids, peptides, and related compounds QD251. University Park.

Chicago Style (17th ed.) Citation

Hey, D. H., and D. I. John. Amino Acids, Peptides, and Related Compounds QD251. London: University Park, 1973.

MLA (9th ed.) Citation

Hey, D. H., and D. I. John. Amino Acids, Peptides, and Related Compounds QD251. University Park, 1973.