Mark, J., Spellman, F., & Peale, N. V. (1954). Understanding. K. H. Volk.
Chicago Style (17th ed.) CitationMark, Julius, Francis Spellman, and Norman Vincent Peale. Understanding. New York: K. H. Volk, 1954.
MLA (8th ed.) CitationMark, Julius, et al. Understanding. K. H. Volk, 1954.
Warning: These citations may not always be 100% accurate.