Gaya APA
Murie, O, J. (1974).
The peterson field guide series a field guide to animal tracks .
Bandung:
Houghton Mifflin Company.
Gaya MLA
Murie, Olaus, J..
"The peterson field guide series a field guide to animal tracks".
Bandung:
Houghton Mifflin Company,
1974.
Text.