APA

Lellinger D. B., Cremers G. & Kramer K. u. (1991). Flora of the Guianas : Dennstaedtiaceae, Hymenophyllopsidaceae. Koenigstein: Koeltz Scientific Books.

Chicago

Lellinger David B, Cremers Georges and Kramer K u. 1991. Flora of the Guianas : Dennstaedtiaceae, Hymenophyllopsidaceae. Koenigstein: Koeltz Scientific Books.

Harvard

Lellinger D. B., Cremers G. and Kramer K. u. (1991). Flora of the Guianas : Dennstaedtiaceae, Hymenophyllopsidaceae. Koenigstein: Koeltz Scientific Books.

MLA

Lellinger David B, Cremers Georges and Kramer K u. Flora of the Guianas : Dennstaedtiaceae, Hymenophyllopsidaceae. Koenigstein: Koeltz Scientific Books. 1991.