Pycnogonida /
Calman, W. T. 1871-1952.
Pycnogonida / by W. T. Calman. - London : by Order of the Trustees of the British Museum, 1938. - 148-166 p. : ill. ; 32 cm. - The John Murray expedition ; Zoology ; 5.6 .
Pycnogonida / by W. T. Calman. - London : by Order of the Trustees of the British Museum, 1938. - 148-166 p. : ill. ; 32 cm. - The John Murray expedition ; Zoology ; 5.6 .