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APA-referensWalters, R., Kirkpatrick, W. J., Holst, G., Schulz, J. A. P., Gauntlett, H. J., & Gruber, F. (2006). 15 easy Christmas carol arrangements for the progressing singer: High voice. Hal Leonard.
Chicago-stil citatWalters, Richard, William J. Kirkpatrick, Gustav Holst, Johann Abraham Peter Schulz, Henry John Gauntlett, och Franz Gruber. 15 Easy Christmas Carol Arrangements for the Progressing Singer: High Voice. Milwaukee (WI): Hal Leonard, 2006.
MLA-referensWalters, Richard, et al. 15 Easy Christmas Carol Arrangements for the Progressing Singer: High Voice. Hal Leonard, 2006.
Harvard-stil citatWalters, R., Kirkpatrick, W. J., Holst, G., Schulz, J. A. P., Gauntlett, H. J. & Gruber, F. 2006. 15 easy Christmas carol arrangements for the progressing singer: High voice. Milwaukee (WI): Hal Leonard.