Παραπομπή APA

Topping, J. (1978). Errors of observations and their treatment (3.).

Παραπομπή Chicago Style

Topping, J. Errors of Observations and Their Treatment. 3. Chapman & Hall Ltd., London, 1978.

Παραπομπή MLA

Topping, J. Errors of Observations and Their Treatment. 3. 1978.