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Start Over You searched for: Author Mines Bureau Remove constraint Author: Mines Bureau Publish Year Decade 1960 - 1969 Remove constraint Publish Year Decade: 1960 - 1969

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384. Molybdenum; [by John L. Morning].

387. Nickel; [by Horace T. Reno].

388. Peat; by Eugene T. Sheridan.

389. Perlite; [by Timothy C. May].

390. Phosphate rock; by Richard W. Lewis.