Gaya APA

Chase, W. (2006). Roedy Black’s Guitar & keyboard scales poster: The Home-Printable Wall Chart and Book of Scales . Canada: Roedy Black Publishing Inc..

Gaya MLA

Chase, Wayne. "Roedy Black’s Guitar & keyboard scales poster: The Home-Printable Wall Chart and Book of Scales". Canada: Roedy Black Publishing Inc., 2006. Text.