Cita APA (7th ed.)

Curtis, J. T., & Cottam, G. (1969). Plant ecology workbook: Laboratory, field and reference manual. Burggess.

Cita Chicago (17th ed.)

Curtis, J. T., i Grant Cottam. Plant Ecology Workbook: Laboratory, Field and Reference Manual. Brookline: Burggess, 1969.

Cita MLA (9th ed.)

Curtis, J. T., i Grant Cottam. Plant Ecology Workbook: Laboratory, Field and Reference Manual. Burggess, 1969.