APA Style

Murphy, S, J., Remkiewicz, F. (2003). MathStart, Level 3 #10: Less Than Zero (Negative Numbers) (Cetakan ke-1). New York: PT. Pustaka Sinar Harapan.

MLA Style

Murphy, Stuart, J.., Remkiewicz, Frank. "MathStart, Level 3 #10: Less Than Zero (Negative Numbers)". Cetakan ke-1 New York: PT. Pustaka Sinar Harapan, 2003. Text.