APA (7th ed.) Citation

Block, P. (1998). The African species of Ixora: (Rubiaceae - Pavetteae). National Botanic Garden of Belgium.

Chicago Style (17th ed.) Citation

Block, Petra. The African Species of Ixora: (Rubiaceae - Pavetteae). Meise: National Botanic Garden of Belgium, 1998.

MLA (9th ed.) Citation

Block, Petra. The African Species of Ixora: (Rubiaceae - Pavetteae). National Botanic Garden of Belgium, 1998.

Warning: These citations may not always be 100% accurate.