Cita APA (7th ed.)

Hartmann, H. T., Flocker, W. J., & Kofranek, A. M. (1981). Plant science: Growth, development, and utilization of cultivated plants. Prentice-Hall.

Cita Chicago (17th ed.)

Hartmann, Hudson Thomas, William Jack Flocker, i Anton M. Kofranek. Plant Science: Growth, Development, and Utilization of Cultivated Plants. Englewood Cliffs, N.J: Prentice-Hall, 1981.

Cita MLA (9th ed.)

Hartmann, Hudson Thomas, et al. Plant Science: Growth, Development, and Utilization of Cultivated Plants. Prentice-Hall, 1981.