APA (7th ed.) Citation

Green Street Software. (2002). How machines work. Green Street Software.

Chicago Style (17th ed.) Citation

Green Street Software. How Machines Work. Cambridgeshire: Green Street Software, 2002.

MLA (9th ed.) Citation

Green Street Software. How Machines Work. Green Street Software, 2002.

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