APA Style

Manual on verbal business communication. (1991). Singapore: Ngee Ann Polytechnic.

Chicago Style

Manual on verbal business communication. . Singapore: Ngee Ann Polytechnic, 1991. Book.

MLA Style

Manual on verbal business communication. . Singapore: Ngee Ann Polytechnic, 1991. Book.

Turabian Style

Manual on verbal business communication. Singapore: Ngee Ann Polytechnic, 1991. Book.