APA

Siekmann T. C., . (1957). Girls, you're important: instruction for Catholic girls. New York: Wagner.

Chicago

Siekmann Theodore C, . 1957. Girls, you're important: instruction for Catholic girls. New York: Wagner.

Harvard

Siekmann T. C., . (1957). Girls, you're important: instruction for Catholic girls. New York: Wagner.

MLA

Siekmann Theodore C, . Girls, you're important: instruction for Catholic girls. New York: Wagner. 1957.