Gruppe, E. (1983). Brushwork for the oil painter (Revised edition.). Watson-Guptill.
Chicago Style (17th ed.) CitationGruppe, Emil. Brushwork for the Oil Painter. Revised edition. New York: Watson-Guptill, 1983.
MLA (9th ed.) CitationGruppe, Emil. Brushwork for the Oil Painter. Revised edition. Watson-Guptill, 1983.
Warning: These citations may not always be 100% accurate.