Gaya APA

Double Your Brain Power. (2003). : .

Gaya Chicago

Double Your Brain Power. Cet. 3; Maret 2003. : , 2003. Text.

Gaya MLA

Double Your Brain Power. Cet. 3; Maret 2003. : , 2003. Text.

Gaya Turabian

Double Your Brain Power. : , 2003. Print.