Gaya APA

inc., G, I., Dobson, A. (2003). Grolier business library Writing business letters. How to tackle your day to day business correspondence successfully . : grolier int'l.

Gaya MLA

inc., Grolier, International., Dobson, Ann. "Grolier business library Writing business letters. How to tackle your day to day business correspondence successfully". : grolier int'l, 2003. Text.