The Comatulids /
Clark, Austin Hobart
The Comatulids / Austin Hobart Clark. - Washington : Government Printing Office, 1921. - 795 p. : ill. ; 32 cm. - A Monograph of the Existing Crinoids ; 1.2 .
The Comatulids / Austin Hobart Clark. - Washington : Government Printing Office, 1921. - 795 p. : ill. ; 32 cm. - A Monograph of the Existing Crinoids ; 1.2 .