Risk and Focus in Defense Systems AcquisitionRobert E. Gray, Larry R. Sharp, Kenneth G. McCollum · First published 2020Open the Tome
Treasury of Illustrations and Quotations from Walking with JesusCallahan, Robert B., Sr., Matthew McCollum, Jeff Ingram · First published 2015Open the Tome
Finding my wayThomas Robert McCollum, Harvard University. Department of Architecture, Harvard University. Graduate School of Design · First published 1999Open the Tome
Guide to inland vegetated wetlands in MassachusettsMary Ann DiPinto, Robert McCollum, Jane Steven · First published 1988Open the Tome
Vitamins and hormonesRobert Samuel Harris, Kenneth Vivian Thimann, Elmer Verner McCollum · First published 1943Open the Tome
