Gaya APA
Peterson, Roger Tery. (1980).
A Field guide to the birds : a completely new guide to all the birds of Eastern and Central North America .
Boston:
Houghton Mifflin.
Gaya Chicago
Peterson, Roger Tery.
A Field guide to the birds : a completely new guide to all the birds of Eastern and Central North America.
Boston:
Houghton Mifflin,
1980.
Buku.
Gaya MLA
Peterson, Roger Tery.
A Field guide to the birds : a completely new guide to all the birds of Eastern and Central North America.
Boston:
Houghton Mifflin,
1980.
Buku.
Gaya Turabian
Peterson, Roger Tery.
A Field guide to the birds : a completely new guide to all the birds of Eastern and Central North America.
Boston:
Houghton Mifflin,
1980.
Buku.