Determinate evolution in the color-pattern of the lady-beetles /
Johnson, Roswell Hill, 1877-
Determinate evolution in the color-pattern of the lady-beetles / by Roswell H. Johnson. - Washington, D.C., Carnegie Institution of Washington, 1910. - IV, 104 p. : ill. ; 25 cm. - Carnegie Institution of Washington publication ; no. 122. Papers of the Station for experimental evolution ; no. 15 .
Determinate evolution in the color-pattern of the lady-beetles / by Roswell H. Johnson. - Washington, D.C., Carnegie Institution of Washington, 1910. - IV, 104 p. : ill. ; 25 cm. - Carnegie Institution of Washington publication ; no. 122. Papers of the Station for experimental evolution ; no. 15 .