Zoology

WILLIAMS, C.B.

London, Collins, 1958.

FORD, E.B.

London, (1962).

GIEBEL, C.G.

Leipzig, Ambrosius Barth, 1855.

SKRJABIN, K.I.

Jerusalem, 1965.

INNES, WILLIAM T.

Philadelphia, (1931).

BEE-KEEPING - THORLEY, JOHN.

London, J. Johnson, 1774.

HAMMER, OLE.

Copenhagen, 1941.

NIELSEN, E.

Copenhagen, 1932.

KOSSE, IOANNES FR. IULIUS.

Halae, Hendelianus, 1813.

KOO, TED S.Y. (EDT.).

Seattle, 1962.

EINSTEIN, ALBERT, MAX BORN, MAX PLANCK, K.von FRISCH.

Berlin, Julius Springer, 1927.

THINGVALLAVATN -

Odense, 1992.

STROMER v. REICHENBACH, ERNST.

Leipzig u. Berlin, 1912.

KJØLBYE, C.S.

Kbhvn., 1821.

HOLMGREN, NILS.

Uppsal & Stockh., 1909-13.

HARDY, ALISTER.

London, 1959.

INNES, WILLIAM T.

Philadelphia., (1949).

PRAEGER, ROBERT LLOYD.

London, 1950.