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APA ZitierstilRussell, B. (2018). "Difficult and Costly": Stone Transport. Its Constraints, and Its Impact. Jambes: Agence Wallonne du Patrimoine, AWaP.
Chicago ZitierstilRussell, Ben. "Difficult and Costly": Stone Transport. Its Constraints, and Its Impact. Jambes: Agence Wallonne du Patrimoine, AWaP, 2018.
MLA ZitierstilRussell, Ben. "Difficult and Costly": Stone Transport. Its Constraints, and Its Impact. Jambes: Agence Wallonne du Patrimoine, AWaP, 2018.