Free, M. (1957). Plant propagation in pictures: How to increase the number of plants in your home and garden by division, grafting, layering, cuttings, bulbs and tubers, sowing seeds and spores. Illustrated step by step with more than 350 photos, and 11 line drawings. American Garden Guild.
Chicago Style (17th ed.) CitationFree, Montague. Plant Propagation in Pictures: How to Increase the Number of Plants in Your Home and Garden by Division, Grafting, Layering, Cuttings, Bulbs and Tubers, Sowing Seeds and Spores. Illustrated Step by Step with More than 350 Photos, and 11 Line Drawings. New York: American Garden Guild, 1957.
MLA (9th ed.) CitationFree, Montague. Plant Propagation in Pictures: How to Increase the Number of Plants in Your Home and Garden by Division, Grafting, Layering, Cuttings, Bulbs and Tubers, Sowing Seeds and Spores. Illustrated Step by Step with More than 350 Photos, and 11 Line Drawings. American Garden Guild, 1957.