Sheffield, L. M., & Sheffield, N. C. (1927). Swimming simplified. A.S. Barnes and company.
Chicago Style (17th ed.) CitationSheffield, Lyba M., and Nita C. Sheffield. Swimming Simplified. New York: A.S. Barnes and company, 1927.
MLA (9th ed.) CitationSheffield, Lyba M., and Nita C. Sheffield. Swimming Simplified. A.S. Barnes and company, 1927.
Warning: These citations may not always be 100% accurate.