APA
Plowman T., . (1989). Flora of Ecuador : 93. Erythroxylaceae / Timothy Plowman. Goteborg: University of Goteborg. Departament of Systematic Botany; Gunnar Harling; Lennart Andersson.
Chicago
Plowman Timothy, . 1989. Flora of Ecuador : 93. Erythroxylaceae / Timothy Plowman. Goteborg: University of Goteborg. Departament of Systematic Botany; Gunnar Harling; Lennart Andersson.
Harvard
Plowman T., . (1989). Flora of Ecuador : 93. Erythroxylaceae / Timothy Plowman. Goteborg: University of Goteborg. Departament of Systematic Botany; Gunnar Harling; Lennart Andersson.
MLA
Plowman Timothy, . Flora of Ecuador : 93. Erythroxylaceae / Timothy Plowman. Goteborg: University of Goteborg. Departament of Systematic Botany; Gunnar Harling; Lennart Andersson. 1989.