APA

Croft K., Brown B. W., . (1966). Science readings for students of English as a second language. New York [etc.]: McGraw-Hill Book Company.

Chicago

Croft Kenneth, Brown Billye Walker, . 1966. Science readings for students of English as a second language. New York [etc.]: McGraw-Hill Book Company.

Harvard

Croft K., Brown B. W., . (1966). Science readings for students of English as a second language. New York [etc.]: McGraw-Hill Book Company.

MLA

Croft Kenneth, Brown Billye Walker, . Science readings for students of English as a second language. New York [etc.]: McGraw-Hill Book Company. 1966.