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Dyfyniad Arddull Chicago普莱特. 了不起的便便: Don't Flush: Lifting the Lid on the Science of Poo and Wee. 电子工业出版社, 2017.
Dyfyniad MLA普莱特. 了不起的便便: Don't Flush: Lifting the Lid on the Science of Poo and Wee. 电子工业出版社, 2017.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.