Hoveland, C. S.; Harris, R. R. (Ralph Rogers), 1929-; Haaland, Ronald L. (Ronald Lynn), 1946-; McGuire, J. A. (John Albert), 1931-; Webster, W. B. (William B.); Calvert, V. H. (2010-11-15)
Hoveland, C. S.; Haaland, Ronald L. (Ronald Lynn), 1946-; Berry, C. D.; Pedersen, J. F.; Schmidt, Stephen Paul; Harris, R. R. (Ralph Rogers), 1929- (2010-11-15)