$a Kp. Biology, ecology, and evolution of gall-inducing arthropods / editors, Anantanarayanan Raman, Carl W. Schaefer, and Toni M. Withers. - Enfield, 2005.
670
$a LCA online
670
$a Use of pollen traps and pollen supplements in developing honeybee colonies / by C. W. Schaefer and C. L. Farrar. - [Washington], 1946.
670
$a Carl W. Schaefer (September 06, 1934 - April 29, 2015) / A R Panizzi // Neotropical Entomology, 2015, Vol. 44, z. 6, S. 533-533.
999
$a VIRTUA x
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