Cita APA (7a ed.)

Costing, H. J. (1956). The study of plants communities: An introduction to plant ecology (2a. ed.). W. H. Freeman and company.

Cita Chicago Style (17a ed.)

Costing, Henry J. The Study of Plants Communities: An Introduction to Plant Ecology. 2a. ed. San Francisco: W. H. Freeman and company, 1956.

Cita MLA (9a ed.)

Costing, Henry J. The Study of Plants Communities: An Introduction to Plant Ecology. 2a. ed. W. H. Freeman and company, 1956.