Dyfyniad APA

Pinowski, J., & Kendeigh, S. C. (1977). Granivorous birds in ecosystems. CUP.

Dyfyniad Arddull Chicago

Pinowski, Jan, and S. Charles Kendeigh. Granivorous Birds in Ecosystems. CUP, 1977.

Dyfyniad MLA

Pinowski, Jan, and S. Charles Kendeigh. Granivorous Birds in Ecosystems. CUP, 1977.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.