Cita APA (7a ed.)

Holm, L. G. (1991). A geographical atlas of world weeds (Repr.). Krieger.

Cita Chicago Style (17a ed.)

Holm, LeRoy G. A Geographical Atlas of World Weeds. Repr. Malabar: Krieger, 1991.

Cita MLA (9a ed.)

Holm, LeRoy G. A Geographical Atlas of World Weeds. Repr. Krieger, 1991.