APA-Zitierstil (7. Ausg.)

Little, E. L., Woodbury, R. O., & Wadsworth, F. H. Trees of Puerto Rico and the Virgin Islands. Dep. of Agriculture.

Chicago-Zitierstil (17. Ausg.)

Little, Elbert Luther, Roy O. Woodbury, und Frank H. Wadsworth. Trees of Puerto Rico and the Virgin Islands. Washington, DC: Dep. of Agriculture.

MLA-Zitierstil (9. Ausg.)

Little, Elbert Luther, et al. Trees of Puerto Rico and the Virgin Islands. Dep. of Agriculture.