Gaya APA

maloney, M., wahono, S. (2012). Guide to investing in gold and silver: lindungi masa depan keuangan anda . Jakarta: Gramedia Pustaka Utama.

Gaya MLA

maloney, Michael., wahono, Satrio. "Guide to investing in gold and silver: lindungi masa depan keuangan anda". Jakarta: Gramedia Pustaka Utama, 2012. Text.