Petschek, P., & Walker, P. (2014). Grading: LandscapingSMART 3D machine control systems stormwater management (Second edition, revised and expanded.). Birkhäuser.
Citace podle Chicago (17th ed.)Petschek, Peter, a Peter Walker. Grading: LandscapingSMART 3D Machine Control Systems Stormwater Management. Second edition, revised and expanded. Basel: Birkhäuser, 2014.
Citace podle MLA (9th ed.)Petschek, Peter, a Peter Walker. Grading: LandscapingSMART 3D Machine Control Systems Stormwater Management. Second edition, revised and expanded. Birkhäuser, 2014.
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