Gaya APA

Leo, Sutanto. (2006). English For Leisure Time Speaking . Jakarta: Gramedia Pustaka Utama.

Gaya Chicago

Leo, Sutanto. English For Leisure Time Speaking. Jakarta: Gramedia Pustaka Utama, 2006. Text.

Gaya MLA

Leo, Sutanto. English For Leisure Time Speaking. Jakarta: Gramedia Pustaka Utama, 2006. Text.

Gaya Turabian

Leo, Sutanto. English For Leisure Time Speaking. Jakarta: Gramedia Pustaka Utama, 2006. Print.