Phelps, William H. & E. Thomas Gilliard books & textbook
Seventeen New Birds from Venezuela
Phelps, William H. & E. Thomas Gilliard
American Museum of Natural History /1941T Paperback
Six New Birds from the Perija Mountains of Venezuela
Phelps, William H & Gilliard, E Thomas
Amer Mus Nat Hist /1940T Paperback
