APA aipamena

Zigler, E., & Styfco, S. J. (2004). The Head Start debates. P.H. Brookes Pub..

Chicago Style aipamena

Zigler, Edward, and Sally J. Styfco. The Head Start Debates. Baltimore, Md.: P.H. Brookes Pub., 2004.

MLA aipamena

Zigler, Edward, and Sally J. Styfco. The Head Start Debates. P.H. Brookes Pub., 2004.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.