APA ציטוט

Eifrig, C. W. G. (1911). The Birds of Ottawa, continued. Zenodo.

Chicago Style (17th ed.) Citation

Eifrig, Charles William Gustav. The Birds of Ottawa, Continued. Zenodo, 1911.

ציטוט MLA

Eifrig, Charles William Gustav. The Birds of Ottawa, Continued. Zenodo, 1911.