APA

Nielsen L. R., Philipp M., Adsersen H. & Siegismund H. R. (2000). Breeding systems of Scalesia divisa Andersson, an endemic Asteraceae from the Galápagos Islands. : .

Chicago

Nielsen Lene Rostgaard, Philipp Marianne, Adsersen Henning and Siegismund Hans R. 2000. Breeding systems of Scalesia divisa Andersson, an endemic Asteraceae from the Galápagos Islands. : .

Harvard

Nielsen L. R., Philipp M., Adsersen H. and Siegismund H. R. (2000). Breeding systems of Scalesia divisa Andersson, an endemic Asteraceae from the Galápagos Islands. : .

MLA

Nielsen Lene Rostgaard, Philipp Marianne, Adsersen Henning and Siegismund Hans R. Breeding systems of Scalesia divisa Andersson, an endemic Asteraceae from the Galápagos Islands. : . 2000.