Life histories of North American diving birds: Order Pygopodes.
New York: Dodd Mead & Company, 1946. Octavo, photographs, dustwrapper. More
New York: Dodd Mead & Company, 1946. Octavo, photographs, dustwrapper. More
New York: Devin-Adair, (1947. first edition). Octavo, photographs, text illustrations, lacks dustwrapper. More
New York: American Museum of Natural History, 1951. Octavo, photographs, binder's quarter calf over marbled boards, the signature of J. h. Sorensen. With three other related paper, all from American Museum Novitates. More