Παραπομπή APA

Petterssen, S. (1956). Weather analysis and forecasting. McGraw hill.

Παραπομπή Chicago Style

Petterssen, Sverre. Weather Analysis and Forecasting. New york: McGraw hill, 1956.

Παραπομπή MLA

Petterssen, Sverre. Weather Analysis and Forecasting. McGraw hill, 1956.