Цитирование APA (7-е изд.)

Coldeway, D. O., & Spencer, R. E. (1980). The measurement of attrition and completion in distance learning courses. Athabasca University.

Цитирование в стиле Чикаго (17-е изд.)

Coldeway, Dan O., и Robert E. Spencer. The Measurement of Attrition and Completion in Distance Learning Courses. Edmonton, Alta.: Athabasca University, 1980.

Цитирование MLA (8-е изд.)

Coldeway, Dan O., и Robert E. Spencer. The Measurement of Attrition and Completion in Distance Learning Courses. Athabasca University, 1980.

Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.