APA استشهاد

Delong, P. (1979). Pest management in trasition ;With a regional focus on the interior west. Westview press.

استشهاد بنمط شيكاغو

Delong, Pieter. Pest Management in Trasition ;With a Regional Focus on the Interior West. U S A: Westview press, 1979.

MLA استشهاد

Delong, Pieter. Pest Management in Trasition ;With a Regional Focus on the Interior West. Westview press, 1979.