Copeland D. E. (1968). Fine structures of the carbon monoxide secreting tissue in the float of Portuguese man-of-war (Physalia physalis L.). Biological Bulletin, vol. 135, pp. 486—500. pdf.doi:10.2307/1539711.
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Copeland D. E. (1968). Fine structures of the carbon monoxide secreting tissue in the float of Portuguese man-of-war (Physalia physalis L.). Biological Bulletin, vol. 135, pp. 486—500. pdf.doi:10.2307/1539711.