APA (7th ed.) Citation
(1992). SPIRS User's Manual (2. ed.). Silverplatter.
Chicago Style (17th ed.) Citation
SPIRS User's Manual. 2. ed. Norwood: Silverplatter, 1992.
MLA (9th ed.) Citation
SPIRS User's Manual. 2. ed. Silverplatter, 1992.
Warning: These citations may not always be 100% accurate.