Researches in ecology /
Clements, Frederic E.
Researches in ecology / by Frederic E. Clements - Washington : Carnegie Institution, 1925 - 309-343 p. : ill. ; 27 cm - Carnegie institution of Washington. Year book ; 24 .
Researches in ecology / by Frederic E. Clements - Washington : Carnegie Institution, 1925 - 309-343 p. : ill. ; 27 cm - Carnegie institution of Washington. Year book ; 24 .