Queen rearing
Laidlaw, H.H., Eckert, J.E.
Queen rearing by H.H. Laidlaw and J.E. Eckert - Los Angeles University of California Press 1962 - 165 p. & 63 fig.
Bee Keeping
638.12 / L 185 Q
Queen rearing by H.H. Laidlaw and J.E. Eckert - Los Angeles University of California Press 1962 - 165 p. & 63 fig.
Bee Keeping
638.12 / L 185 Q