APA
Anderson L., Dempster L. T., . (1993). Flora of Ecuador : 162. Rubiaceae - introduction. 162(22). Rubiaceae - Anthospermeae. 162(23). Rubiaceae - Rubiae / Lennart Anderson ; Lauramay T. Dempster. Goteborg: University of Goteborg. Departament of Systematic Botany; Gunnar Harling; Lennart Andersson.
Chicago
Anderson Lennart, Dempster Lauramay T, . 1993. Flora of Ecuador : 162. Rubiaceae - introduction. 162(22). Rubiaceae - Anthospermeae. 162(23). Rubiaceae - Rubiae / Lennart Anderson ; Lauramay T. Dempster. Goteborg: University of Goteborg. Departament of Systematic Botany; Gunnar Harling; Lennart Andersson.
Harvard
Anderson L., Dempster L. T., . (1993). Flora of Ecuador : 162. Rubiaceae - introduction. 162(22). Rubiaceae - Anthospermeae. 162(23). Rubiaceae - Rubiae / Lennart Anderson ; Lauramay T. Dempster. Goteborg: University of Goteborg. Departament of Systematic Botany; Gunnar Harling; Lennart Andersson.
MLA
Anderson Lennart, Dempster Lauramay T, . Flora of Ecuador : 162. Rubiaceae - introduction. 162(22). Rubiaceae - Anthospermeae. 162(23). Rubiaceae - Rubiae / Lennart Anderson ; Lauramay T. Dempster. Goteborg: University of Goteborg. Departament of Systematic Botany; Gunnar Harling; Lennart Andersson. 1993.