Cita APA

Friendship, R. M., Metzger, K. R., Robinson, N. P., & Doig, G. S. (1990). Cesarean section in the sow: A retrospective analysis of litter size and stillbirth rate.

Citación estilo Chicago

Friendship, Robert M., Kenneth R. Metzger, Nancy P. Robinson, y Gordon S. Doig. Cesarean Section in the Sow: A Retrospective Analysis of Litter Size and Stillbirth Rate. 1990.

Cita MLA

Friendship, Robert M., Kenneth R. Metzger, Nancy P. Robinson, y Gordon S. Doig. Cesarean Section in the Sow: A Retrospective Analysis of Litter Size and Stillbirth Rate. 1990.