APA

Ward H. B., Powers W. E., . (1942). An introduction to the study of weather and climate. Evanston, Ill: .

Chicago

Ward Harold Bernard, Powers William Edwards, . 1942. An introduction to the study of weather and climate. Evanston, Ill: .

Harvard

Ward H. B., Powers W. E., . (1942). An introduction to the study of weather and climate. Evanston, Ill: .

MLA

Ward Harold Bernard, Powers William Edwards, . An introduction to the study of weather and climate. Evanston, Ill: . 1942.