Watt, A. (1887). The art of soap-making: A practical handbook (3a. ed.). Crosby.
Cita Chicago Style (17a ed.)Watt, Alexander. The Art of Soap-making: A Practical Handbook. 3a. ed. London: Crosby, 1887.
Cita MLA (9a ed.)Watt, Alexander. The Art of Soap-making: A Practical Handbook. 3a. ed. Crosby, 1887.
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