Vervoort, G., & Mason, D. J. (1980). Intermediate calculator math. D.S. Lake Publishers.
Chicago Style (17th ed.) CitationVervoort, Gerardus, and Dale J. Mason. Intermediate Calculator Math. Belmont, Calif: D.S. Lake Publishers, 1980.
MLA (9th ed.) CitationVervoort, Gerardus, and Dale J. Mason. Intermediate Calculator Math. D.S. Lake Publishers, 1980.
Warning: These citations may not always be 100% accurate.