APA (7th ed.) Citation

Bell Directories Pty. Ltd. (1986). Bell trade and business directory, Papua New Guinea. Bell Directories.

Chicago Style (17th ed.) Citation

Bell Directories Pty. Ltd. Bell Trade and Business Directory, Papua New Guinea. Boroko: Bell Directories, 1986.

MLA (9th ed.) Citation

Bell Directories Pty. Ltd. Bell Trade and Business Directory, Papua New Guinea. Bell Directories, 1986.

Warning: These citations may not always be 100% accurate.