APA Style

CALLAHAN, Mike. (1990). Dr. File Finder's guide to shareware . California: McGraw-Hill.

Chicago Style

CALLAHAN, Mike. Dr. File Finder's guide to shareware. California: McGraw-Hill, 1990. Text.

MLA Style

CALLAHAN, Mike. Dr. File Finder's guide to shareware. California: McGraw-Hill, 1990. Text.

Turabian Style

CALLAHAN, Mike. Dr. File Finder's guide to shareware. California: McGraw-Hill, 1990. Print.