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Clutterbuck, Percival Walter, Walter Norman Haworth, Harold Raistrick, George Smith, and Maurice Stacey. Studies in the Biochemistry of Micro-organisms: The Metabolic Products of Penicillium Charlesii G. Smith. 1934.

Clutterbuck, Percival Walter, et al. Studies in the Biochemistry of Micro-organisms: The Metabolic Products of Penicillium Charlesii G. Smith. 1934.