Ornithology

COHEN, EDWIN.

Edinburgh, London, (1963).

ORNITHOLOGISCHE BERICHTE.

Heidelberg, 1947-50.

HANDBUCH DER VÖGEL MITTELEUROPAS.

Frankfurt a. Main, 1966-77.

BROWN, LESLIE.

London, (1959).

BERG, BENGT.

Stockholm, (1916).

DIXON, CHARLES.

London, Glasgow, Blackie, 1900.

GOULD, JOHN.

London, Printed by Taylor and Francis - Published by the Author, (1862-) 73.

GOULD, JOHN.

London, Printed by Taylor and Francis - Published by the Author, (1862-) 73.

TIMMERMANN, GÜNTER.

Reykjavik, Ísafoldarprentsmidja H.F., 1938-49.

PETERS, HAROLD S. a. THOMAS D. BURLEIGH.

(Cambridge, Mass., 1951).

WEIGOLD, HUGO.

erlin, Freidländer & Sohn, 1930.

VAURIE, CHARLES.

(London, 1972).

HOLSTEIN, VAGN.

Kbhvn., 1942.

MATVEJEV, S.D.

Moskva, 1950.

NEUNZIG, KARL.

Magdeburg, 1907.

SLUD, PAUL.

N.Y., 1964.

HEILMANN, GERHARD og A.L.V. MANNICHE.

Kbhvn., 1928-30.

GOODWIN, DEREK.

London, 1967.