Gaya APA
BURROWS, W., MOULDER, J, W. (1968).
Textbook of microbiology (19th ed.).
Philadelphia:
W.B. Saunders Company.
Gaya MLA
BURROWS, William., MOULDER, James, William.
"Textbook of microbiology".
19th ed.
Philadelphia:
W.B. Saunders Company,
1968.
Buku.