Παραπομπή APA

Gwatkin, R. (1945). Studies in Pullorum Disease: VII. Transmission of Infection to Healthy Birds by Contact.

Παραπομπή Chicago Style

Gwatkin, Ronald. Studies in Pullorum Disease: VII. Transmission of Infection to Healthy Birds By Contact. 1945.

Παραπομπή MLA

Gwatkin, Ronald. Studies in Pullorum Disease: VII. Transmission of Infection to Healthy Birds By Contact. 1945.

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