APA

Jennings O. e., . (1916). A contribution to the botany of the Isle of Pines, Cuba, based upon the specimens of plants from that island contained in the Herbarium of the Carnegie Museum under date of October 1916. Pittsburgh: Carnegie Museum of Natural History.

Chicago

Jennings O e, . 1916. A contribution to the botany of the Isle of Pines, Cuba, based upon the specimens of plants from that island contained in the Herbarium of the Carnegie Museum under date of October 1916. Pittsburgh: Carnegie Museum of Natural History.

Harvard

Jennings O. e., . (1916). A contribution to the botany of the Isle of Pines, Cuba, based upon the specimens of plants from that island contained in the Herbarium of the Carnegie Museum under date of October 1916. Pittsburgh: Carnegie Museum of Natural History.

MLA

Jennings O e, . A contribution to the botany of the Isle of Pines, Cuba, based upon the specimens of plants from that island contained in the Herbarium of the Carnegie Museum under date of October 1916. Pittsburgh: Carnegie Museum of Natural History. 1916.