Ornithology

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.

GOULD, JOHN.

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

HOLGERSEN, HOLGER.

Oslo, 1945.

DAVIDSON, ALAN.

London, 1954.

RIVOLIER, JEAN.

London, (1956).

IVANOV, A. I., E. V. KOZLOVA, L. A. PORTENKO and A. JA. TUGARINOV.

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.

LOWERY, GEORGE H.

Louisiana, (1960).

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

(Cambridge, Mass., 1951).

SIBLEY, CHARLES a. JON E. aHLQUIST.

New Haven, London, (1990).

AUSTIN, OLIVER L. a. NAGAHISA KURODA.

Cambridge, Mass., 1953.

SCHÜZ, ERNIT.

Stuttgart, 1959.

OAKES, CLIFFORD.

Edinburg, London, (1953).