APA Style

Manual on written business communication. (1994). Singapore: Ngee ann Polythecnic.

Chicago Style

Manual on written business communication. . Singapore: Ngee ann Polythecnic, 1994. Book.

MLA Style

Manual on written business communication. . Singapore: Ngee ann Polythecnic, 1994. Book.

Turabian Style

Manual on written business communication. Singapore: Ngee ann Polythecnic, 1994. Book.