Gaya APA

Love, C., Tinervia, J. (1986). Commercial Correspondence: For Studens of English As a Second Language (2). Singapore: McGraw-Hill Book Company.

Gaya MLA

Love, Charles., Tinervia, Joseph. "Commercial Correspondence: For Studens of English As a Second Language". 2 Singapore: McGraw-Hill Book Company, 1986. Text.