APA (7th ed.) Citation

Nelson, E. W. (1913). Two new subspecies of birds from the slopes of Mount Pirri, Eastern Panama. Smithson. Inst.

Chicago Style (17th ed.) Citation

Nelson, Edward W. Two New Subspecies of Birds from the Slopes of Mount Pirri, Eastern Panama. Washington: Smithson. Inst, 1913.

MLA (9th ed.) Citation

Nelson, Edward W. Two New Subspecies of Birds from the Slopes of Mount Pirri, Eastern Panama. Smithson. Inst, 1913.

Warning: These citations may not always be 100% accurate.