Review of Educational Material by Pender, John W., Ballinger, C. M., Bosomworth, Peter P., Davis, H. S., Duncalf, Deryck, Eckenhoff, J. E., Helrich, Martin, Hohman, C., Jacoby, J. J., McPartland, F. C., Martin, S. J., Noble, Marvin J., Paterson, Alan, Ponath, R. E., Randall, Alan D., Ring, Wallace, Rottenstein, H. S., Sechzer, Philip H., Vandemeer, B. L.

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