Gaya APA

Greene, H, A., Petty, W, T. (1978). Developing Language Skills in the Elementary Schools (Ed.5, Cet.2). Boston: Allyn and Bacon.

Gaya MLA

Greene, Harry, A.., Petty, Walter, T.. "Developing Language Skills in the Elementary Schools". Ed.5, Cet.2 Boston: Allyn and Bacon, 1978. Text.