Axelsson, J. (1932). Variation and heredity of some characters in white leghorns: Rhode Island Reds and Barnevelders Part I. Hakan Ohlsson.
Citace podle Chicago (17th ed.)Axelsson, Joel. Variation and Heredity of Some Characters in White Leghorns: Rhode Island Reds and Barnevelders Part I. Lund: Hakan Ohlsson, 1932.
Citace podle MLA (8th ed.)Axelsson, Joel. Variation and Heredity of Some Characters in White Leghorns: Rhode Island Reds and Barnevelders Part I. Hakan Ohlsson, 1932.
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