Gaya APA
ROUTH, J, I. et al (1973).
ESSENTIAL OF GENERAL, ORGANIC AND BIOCHEMISTRY (Second Editon).
Philadephia:
W. B. Saunders.
Gaya MLA
ROUTH, Joseph, I.. et al.
"ESSENTIAL OF GENERAL, ORGANIC AND BIOCHEMISTRY".
Second Editon
Philadephia:
W. B. Saunders,
1973.
Textbook.