Cita APA

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

Citación estilo Chicago

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

Cita MLA

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

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