APA

Burtt B. L., . (1998). Climatic accomodation and phytogeography of the Gesneriaceae of the old world / B. L. Burtt. : Mentor Books.

Chicago

Burtt B L, . 1998. Climatic accomodation and phytogeography of the Gesneriaceae of the old world / B. L. Burtt. : Mentor Books.

Harvard

Burtt B. L., . (1998). Climatic accomodation and phytogeography of the Gesneriaceae of the old world / B. L. Burtt. : Mentor Books.

MLA

Burtt B L, . Climatic accomodation and phytogeography of the Gesneriaceae of the old world / B. L. Burtt. : Mentor Books. 1998.