- Author: Gene Allen, Daniel Robinson
- Language: English
- Year: 2009
Nature magpie
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- Language: English
- Year: 2013
- Author: Larry G. Allen Daniel J. Pondella II Michael H. Horn
- Language: English
- Year: 2006
- Author: Michael J. B. Allen Daniel G. Calder (transl.)
- Language: English
- Year: 1976
- Author: Allen Daniel K.
- Language: English
- Year: 1990