APA

Abbot C. G., . (1938). The sun and the welfare of man. [New York: Smithsonian Institution Series, Inc.

Chicago

Abbot C G, . 1938. The sun and the welfare of man. [New York: Smithsonian Institution Series, Inc.

Harvard

Abbot C. G., . (1938). The sun and the welfare of man. [New York: Smithsonian Institution Series, Inc.

MLA

Abbot C G, . The sun and the welfare of man. [New York: Smithsonian Institution Series, Inc. 1938.