Citazione Stile APA (7a Edizione)

CALLAHAN, M., & NICKANIS. (1990). Guide to shareware: Dr. File Finders. McGraw Hill.

Citazione stile Chigago Style (17a edizione)

CALLAHAN, Mike, e NICKANIS. Guide to Shareware: Dr. File Finders. New York: McGraw Hill, 1990.

Citatione MLA (9a ed.)

CALLAHAN, Mike, e NICKANIS. Guide to Shareware: Dr. File Finders. McGraw Hill, 1990.