Avifauna Svalbardensis. With a Discussion on the geographical Distribution of the Birds in Spitsbergen and adjacent Islands. I. General Part. II. Special Part. Bibliography.
Oslo, Norsk Polarinstitut, 1963. Lex8vo. Private hcloth. Orig. printed wrappers. 460 pp., 18 plates (9 in colours), fold. map and 33 distributionmaps in pocket at end. (Norsk Polarinstitutt Skr. Nr. 29).