Northington, D. K. (1996). The botanical world. Dubuque, IA: Wm. C. Brown Publishers.
Trích dẫn kiểu ChicagoNorthington, David K. The Botanical World. Dubuque, IA: Wm. C. Brown Publishers, 1996.
MLA citiranjeNorthington, David K. The Botanical World. Dubuque, IA: Wm. C. Brown Publishers, 1996.
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