APA (7th ed.) Citation

Terrell, E. E. (1977). A checklist of names for 3000 vascular plants of economic importance. Agricultural Research Service.

Chicago Style (17th ed.) Citation

Terrell, Edward E. A Checklist of Names for 3000 Vascular Plants of Economic Importance. Washington, DC: Agricultural Research Service, 1977.

MLA (9th ed.) Citation

Terrell, Edward E. A Checklist of Names for 3000 Vascular Plants of Economic Importance. Agricultural Research Service, 1977.