Hartmann, R. R. K., Kester, D. E., Davies, F. T., & Davies, F. T. (1990). Plant propagation: Principles and practices (5th ed.). New Jersey: Prentice-Hall.
Παραπομπή Chicago StyleHartmann, R. R. K., Dale E. Kester, Fred T. Davies, and Fred T. Davies. Plant Propagation: Principles and Practices. 5th ed. New Jersey: Prentice-Hall, 1990.
Παραπομπή MLAHartmann, R. R. K., Dale E. Kester, Fred T. Davies, and Fred T. Davies. Plant Propagation: Principles and Practices. 5th ed. New Jersey: Prentice-Hall, 1990.
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