Gaya APA
O.W, R, .
(1977).
Imkms General Textbook of Entomology
(
10 th)
.
New York:
Chapman and hall.
Gaya MLA
O.W, Richard, .
"Imkms General Textbook of Entomology".
10 th
New York:
Chapman and hall,
1977.
Text.