APA (7th ed.) Citation

Echols, J. M. (1993). HP Deskjet 520 Printer: User's guide. Hewlet Packard, 1983.

Chicago Style (17th ed.) Citation

Echols, John M. HP Deskjet 520 Printer: User's Guide. Hewlet Packard, 1983, 1993.

MLA (8th ed.) Citation

Echols, John M. HP Deskjet 520 Printer: User's Guide. Hewlet Packard, 1983, 1993.

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