APA Style

Spencer Johnson, M.D.. (2009). Peaks and Valleys . Jakarta: Gramedia.

Chicago Style

Spencer Johnson, M.D.. Peaks and Valleys. Jakarta: Gramedia, 2009. Printed Book.

MLA Style

Spencer Johnson, M.D.. Peaks and Valleys. Jakarta: Gramedia, 2009. Printed Book.

Turabian Style

Spencer Johnson, M.D.. Peaks and Valleys. Jakarta: Gramedia, 2009. Printed Book.