Gaya APA
Clarence, E, ., L., A, , E. (1954).
Dairy Cattle and Milk Production (4th. Ed.).
New York:
The Macmillan Company.
Gaya MLA
Clarence, Eckles, ., L., Anthony, , Ernest.
"Dairy Cattle and Milk Production".
4th. Ed.
New York:
The Macmillan Company,
1954.
Text.