The life of birds /
Welty, Joel Carl, 1901-
The life of birds / Joel Carl Welty. - 2d ed. - Philadelphia : Saunders, 1975. - xv, 623 p. : ill. ; 28 cm.
Includes index.
Bibliography: p. 547-590.
0721692311
74006694
Birds.
QL673 / .W46 1975
598
The life of birds / Joel Carl Welty. - 2d ed. - Philadelphia : Saunders, 1975. - xv, 623 p. : ill. ; 28 cm.
Includes index.
Bibliography: p. 547-590.
0721692311
74006694
Birds.
QL673 / .W46 1975
598