Howard, R. A. (1976). Cumulative index to National horticultural magazine, volumes 1-38, 1922-1959 & American horticultural magazine, volumes 39-50, 1960-1971. American Horticultural Society, Inc..
Chicago Style (17th ed.) CitationHoward, Richard A. Cumulative Index to National Horticultural Magazine, Volumes 1-38, 1922-1959 & American Horticultural Magazine, Volumes 39-50, 1960-1971. Mount Vernon, Va.: American Horticultural Society, Inc., 1976.
MLA (9th ed.) CitationHoward, Richard A. Cumulative Index to National Horticultural Magazine, Volumes 1-38, 1922-1959 & American Horticultural Magazine, Volumes 39-50, 1960-1971. American Horticultural Society, Inc., 1976.
Warning: These citations may not always be 100% accurate.