Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Russell, B. (2018). "Difficult and Costly": Stone Transport. Its Constraints, and Its Impact. Agence Wallonne du Patrimoine, AWaP.

Chicago Citation Edition Citation

Russell, Ben. "Difficult and Costly": Stone Transport. Its Constraints, and Its Impact. Jambes: Agence Wallonne du Patrimoine, AWaP, 2018.

MLA Citation Edition Citation

Russell, Ben. "Difficult and Costly": Stone Transport. Its Constraints, and Its Impact. Agence Wallonne du Patrimoine, AWaP, 2018.