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

v.24:pt.7:no.4(1963)

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

v.24:pt.7:no.2(1962)

Flora of Guatemala / Paul C. Standley and Julian A. Steyermark.

v.24:pt.6(1949)

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

v.24:pt.11:no.1-3(1975)

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

v.24:pt.9:no.1-2(1970)

Flora of Guatemala : families Leguminosae, Geraniaceae, Oxalidaceae, Tropaeolaceae, Linaceae, Erythroxylaceae, Zygophyllaceae, Rutaceae, Simaroubaceae, Burseraceae, Meliaceae, and Malpighiaceae / by Paul C. Standley and Julian A. Steyermark.

v.24:pt.5(1946)

Flora of Guatemala / Paul C. Standley, Louis O. Williams, Dorothy Nash Gibson.

v.24:pt.10:no.3-4(1974)

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

v.24:pt.8:no.4(1969)

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

v.24:pt.8:no.1-2(1966)

Studies of American plants. by Paul C. Standley.

v.8:no.5(1931)

Studies of American plants. by Paul C. Standley.

v.8:no.3(1930)

The Cyperaceae of Central America, by Paul C. Standley.

v.8:no.4(1931)

A new Miocene lagomorph, by Paul O. McGrew --

v.8:no.6(1941)

Morphological phylogeny of the bat genus Platyrrhinus Saussure, 1860 (Chiroptera: Phyllostomidae) with the description of four new species / Paul M. Velazco.

n.s. no.105(2005)

Sites of the reserve phase: Pine Lawn Valley, western New Mexico / [by] Paul S. Martin [and] John B. Rinaldo.

v.38:no.3(1950)