Petersen, K. W. (1979). Development of coloniality in Hydrozoa. In: G. Larwood & B. Rosen, eds, Biology and systematics of colonial organisms. Symposium Systematics Association. 11: 105-139.
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Petersen, K. W.
1979
Development of coloniality in Hydrozoa. In: G. Larwood & B. Rosen, eds, Biology and systematics of colonial organisms.
