Reports of the Princeton University Expeditions to Patagonia, 1896-1899. J. B. Hatcher in charge. Edited by William B. Scott.

v.3:pt.4 (1910)

Thesaurus capensis :or, illustrations of the South African flora, being figures and brief descriptions of South African plants, selected from the Dublin University Herbarium /by William H. Harvey.

v. 1

Thesaurus capensis :or, illustrations of the South African flora, being figures and brief descriptions of South African plants, selected from the Dublin University Herbarium /by William H. Harvey.

v. 2

The planktonic freshwater species of Microcystis, by Francis Drouet ... and William A. Daily.

v.20:no.3(1939)

Woods of northeastern Peru, by Llewelyn Williams.

v.15(1936)

Flora of West Virginia, by Charles Frederick Millspaugh and Lawrence William Nuttall.

v.1:no.2(1896)

Flora of Guatemala / Paul C. Standley and Louis O. Williams.

v.24:pt.8:no.3(1967)

The Juglandaceae of Guatemala / Louis O. Williams and Antonio Molina R.

v.32:no.13(1970)

Tropical American plants, II / Louis O. Williams.

v.29:no.6(1961)