APA aipamena

Carlson, H. C., & Pennifold, K. S. (1961). Pasteurellosis in Penguins.

Chicago Style aipamena

Carlson, H C., and K S. Pennifold. Pasteurellosis in Penguins. 1961.

MLA aipamena

Carlson, H C., and K S. Pennifold. Pasteurellosis in Penguins. 1961.