APA

Platt E. T., . (1941). Books and national defense a brief survey of some library resources of geographical pertinence. New York-US: Geografical record.

Chicago

Platt Elizabeth T, . 1941. Books and national defense a brief survey of some library resources of geographical pertinence. New York-US: Geografical record.

Harvard

Platt E. T., . (1941). Books and national defense a brief survey of some library resources of geographical pertinence. New York-US: Geografical record.

MLA

Platt Elizabeth T, . Books and national defense a brief survey of some library resources of geographical pertinence. New York-US: Geografical record. 1941.