Free, M. 1., & Dietz, M. J. (1979). 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. Garden City, New York: Doubleday.
Citación estilo ChicagoFree, Montague 1885-1965, y Marjorie J. Dietz. 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. Garden City, New York: Doubleday, 1979.
Cita MLAFree, Montague 1885-1965, y Marjorie J. Dietz. 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. Garden City, New York: Doubleday, 1979.