Gaya APA

DOBSON,ANN, . (2005). GROLIER BUSINESS LIBRARY WRITING BUSINESS LETTERS (Cet.1 / 2005). HONG KONG: PENERBIT GROLIER INTERNATIONAL INC.

Gaya MLA

DOBSON,ANN, . "GROLIER BUSINESS LIBRARY WRITING BUSINESS LETTERS". Cet.1 / 2005 HONG KONG: PENERBIT GROLIER INTERNATIONAL INC, 2005. Text.