Gaya APA

Krogh, S, L., L, I, S, K. (2011). Early childhood education: yesterday, today, and tomorrow . New York: New York: Routledge, 2011.

Gaya MLA

Krogh, Suzanne, L., L, I., Slentz,, Kristine. "Early childhood education: yesterday, today, and tomorrow". New York: New York: Routledge, 2011, 2011. .