D. A. Spencer

发表

The focal dictionary of photographic technologies

D. A. Spencer, D. A. Spencer, 1973 .

KEYNOTE ADDRESS - VERTEBRATES: A RESOURCE NEEDING MANAGEMENT

Donald A. Spencer, D. A. Spencer, 1972 .

An Electric Fence for Use in Checking Porcupine and Other Mammalian Crop Depredations

D. A. Spencer, 1948 .

A New Pocket Gopher from Illinois and Indiana

E. Komarek, D. A. Spencer, 1931 .

PORCUPINE POPULATION FLUCTUATIONS IN PAST CENTURIES REVEALED BY DENDROCHRONOLOGY

D. A. Spencer, 1964 .

Photography: Theory and Practice

L. P. Clerc, D. A. Spencer, 1970 .

The porcupine, its economic status and control

D. A. Spencer, 1950 .

Movement of chemicals through the environment.

D. A. Spencer, 1971, Journal of dairy science.

Autoplastic Transplatation of Guinea-Pig Skin between Regions with Different Characters

D. A. Spencer, C. H. Seevers, 1932, The American Naturalist.

A Small Mammal Community in the Upper Sonoran Desert

D. A. Spencer, 1941 .