APA (7th ed.) Citation

(1988). The GRAMPS operating system: User's guide / Peter Manbach; Michael Shneier.

Chicago Style (17th ed.) Citation

The GRAMPS Operating System: User's Guide / Peter Manbach; Michael Shneier. 1988.

MLA (9th ed.) Citation

The GRAMPS Operating System: User's Guide / Peter Manbach; Michael Shneier. 1988.

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