APA استشهاد

Walker, C. (1983). The impact of pest management bees and pollination. London: Tropical Development and research Institute.

استشهاد بنمط شيكاغو

Walker, Crane. The Impact of Pest Management Bees and Pollination. London: Tropical Development and research Institute, 1983.

MLA استشهاد

Walker, Crane. The Impact of Pest Management Bees and Pollination. London: Tropical Development and research Institute, 1983.

تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.