GIRARD, J., & SHOOK, R. L. (1997). How to close every sale = Kiat menutup setiap penjualan/penerjemah: John Marto. Gramedia Pustaka Utama.
芝加哥风格引文GIRARD, Joe, 与 Robert L. SHOOK. How to Close Every Sale = Kiat Menutup Setiap Penjualan/penerjemah: John Marto. Jakarta: Gramedia Pustaka Utama, 1997.
MLA引文GIRARD, Joe, 与 Robert L. SHOOK. How to Close Every Sale = Kiat Menutup Setiap Penjualan/penerjemah: John Marto. Gramedia Pustaka Utama, 1997.
警告：这些引文格式不一定是100％准确.