APA

Dorr L. J., Stergios D, Smith A. R. & Cuello A. (2000). Catalogue of the vascular plants of Guaramacal National Park, Portuguesa and Trujillo States, Venezuela. Washington: Smithsonian Institution.

Chicago

Dorr Laurencce J, Stergios D, Smith Alan R and Cuello A. 2000. Catalogue of the vascular plants of Guaramacal National Park, Portuguesa and Trujillo States, Venezuela. Washington: Smithsonian Institution.

Harvard

Dorr L. J., Stergios D, Smith A. R. and Cuello A. (2000). Catalogue of the vascular plants of Guaramacal National Park, Portuguesa and Trujillo States, Venezuela. Washington: Smithsonian Institution.

MLA

Dorr Laurencce J, Stergios D, Smith Alan R and Cuello A. Catalogue of the vascular plants of Guaramacal National Park, Portuguesa and Trujillo States, Venezuela. Washington: Smithsonian Institution. 2000.