An Analysis of factors influencing the distribution of Costa Rican rodents /

by McPherson, Alvadus Bradley 1937-, McPherson, Alvadus Bradley 1937-
Published 1971

A new subspecies of the of the squirrel Sciurus variegatoides Ogilby from Costa Rica.

by McPherson, Alvadus Bradley 1937-, McPherson, Alvadus Bradley 1937-

A biogeographical analysis of factors influencing the distribution of Costa Rica rodents /

by McPherson, Alvadus Bradley 1937-, McPherson, Alvadus Bradley 1937-