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Mallmann, W. L., Mac H. McCrady, A. M. Burwell, F. Wellington Gilcreas, Leland W. Parr, Theodore A. Olson, M. Starr Nichols, a S. T. Powell. Report of the Standard Methods Committee On Examination of Water and Sewage: Laboratory Section. 1943.

Mallmann, W. L., et al. Report of the Standard Methods Committee On Examination of Water and Sewage: Laboratory Section. 1943.