APA

Stiles F. G., .Study of fall migration of nearctic-breeding landbirds in central Costa Rica. : .

Chicago

Stiles F Gary, .Study of fall migration of nearctic-breeding landbirds in central Costa Rica. : .

Harvard

Stiles F. G., .Study of fall migration of nearctic-breeding landbirds in central Costa Rica. : .

MLA

Stiles F Gary, .: . .