APA

Christensen K. M., Whitham T. G., .Impact of insect herbivores on competition between birds and mammals for pinyon pine seeds. : .

Chicago

Christensen Kerry M, Whitham Thomas G, .Impact of insect herbivores on competition between birds and mammals for pinyon pine seeds. : .

Harvard

Christensen K. M., Whitham T. G., .Impact of insect herbivores on competition between birds and mammals for pinyon pine seeds. : .

MLA

Christensen Kerry M, Whitham Thomas G, .: . .