APA (7th ed.) Citation

INTELECOM Intelligent Telecommunications (Firm), Annenberg/CPB, Sadd, J., & Gilfillan, D. (1992). Intrusive igneous rocks. Annenberg/CPB.

Chicago Style (17th ed.) Citation

INTELECOM Intelligent Telecommunications (Firm), Annenberg/CPB, James Sadd, and David Gilfillan. Intrusive Igneous Rocks. South Burlington, Vt.: Annenberg/CPB, 1992.

MLA (9th ed.) Citation

INTELECOM Intelligent Telecommunications (Firm), et al. Intrusive Igneous Rocks. Annenberg/CPB, 1992.