TY  - BOOK
AU  - Collias,Nicholas E.
AU  - Collias,Elsie C.
TI  - External construction by animals
SN  - 047016543X
PY  - 1976///
CY  - Stroudsburg, Pa.
PB  - Dowden, Hutchinson & Ross
KW  - Animals, Habitations of
N1  - Includes bibliographical references and indexes
ER  -