APA

Thorthwaite C., . (1943). Problelms in the classification of climates. New York-US: Geografical record.

Chicago

Thorthwaite C.W, . 1943. Problelms in the classification of climates. New York-US: Geografical record.

Harvard

Thorthwaite C., . (1943). Problelms in the classification of climates. New York-US: Geografical record.

MLA

Thorthwaite C.W, . Problelms in the classification of climates. New York-US: Geografical record. 1943.