Gaya APA

all], G, A, [., lange, M, K, M, J, T, K. (2011). Introduction to Geography Ed. 13 (13). Boston: mc graww hill university.

Gaya MLA

all], Getis, Arthur, [et.., lange, Marty;, Keme,, Margaret, J;, Tibbetts,, Kristine. "Introduction to Geography Ed. 13". 13 Boston: mc graww hill university, 2011. Text.