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<h2 id="references">References</h2> <ol> <li id="fn:1"><p>Peters, Dan; Peters, Steve; Merrill, Cher (July 1984). Why knock rock?. Bethany House Publishers. p. 42. ISBN 9780871234407. Retrieved April 11, 2012. <a href="9780871234407" target="_blank">9780871234407</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> </ol>