Gaya APA

Sperling, A., Swanson, C, P. (NULL). How to make psychology work for you . New: New York: Fawcett World Library; 1957.

Gaya MLA

Sperling, Abraham., Swanson, Carl, P.. "How to make psychology work for you". New: New York: Fawcett World Library; 1957, NULL. Text.