Sullivan, C. (2014). Drawing the landscape: The art of hand drawing and digital representation (Fourth Edition.). John Wiley & Sons, Inc.
Citace podle Chicago (17th ed.)Sullivan, Chip. Drawing the Landscape: The Art of Hand Drawing and Digital Representation. Fourth Edition. Hoboken, New Jersey: John Wiley & Sons, Inc, 2014.
Citace podle MLA (9th ed.)Sullivan, Chip. Drawing the Landscape: The Art of Hand Drawing and Digital Representation. Fourth Edition. John Wiley & Sons, Inc, 2014.
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