APA (7th ed.) Citation

Cochran, W. G. (1983). Planning and analysis of observational studies (1. print.). Wiley.

Chicago Style (17th ed.) Citation

Cochran, William G. Planning and Analysis of Observational Studies. 1. print. New York [u.a.]: Wiley, 1983.

MLA (9th ed.) Citation

Cochran, William G. Planning and Analysis of Observational Studies. 1. print. Wiley, 1983.