Allen, J. H., Greenough, J. B., Kittredge, G. L., Howard, A. A., & D'Ooge, B. L. (1931). Allen and Greenough's New Latin grammar for schools and colleges, founded on comparative grammar. New York [etc.] : Ginn & company.
Chicago Style (17th ed.) CitationAllen, Joseph Henry, J. B. Greenough, George Lyman Kittredge, Albert Andrew Howard, and Benjamin L. D'Ooge. Allen and Greenough's New Latin Grammar for Schools and Colleges, Founded on Comparative Grammar. Boston: New York [etc.] : Ginn & company, 1931.
MLA (8th ed.) CitationAllen, Joseph Henry, et al. Allen and Greenough's New Latin Grammar for Schools and Colleges, Founded on Comparative Grammar. New York [etc.] : Ginn & company, 1931.
Warning: These citations may not always be 100% accurate.