Carl Wilson of The Beach Boys in a Billboard advertisement c. 1971
Unknown author<span style="display: none;">Unknown author</span>
<cite style="font-style:normal"> (<span class="mw-formatted-date" title="1971-11-06">1971-11-06</span>). "<a rel="nofollow" class="external text" href="https://books.google.de/books?id=hQ8EAAAAMBAJ&amp;pg=PA48&amp;dq=the+beach+boys+billboard&amp;hl=en&amp;sa=X&amp;redir_esc=y#v=onepage&amp;q=the%20beach%20boys%20billboard&amp;f=false">Rock's Trend Today Is No Trends</a>". <i>Billboard</i> <b>83</b> (45): 48. <a href="https://en.wikipedia.org/wiki/International_Standard_Serial_Number" class="extiw" title="en:International Standard Serial Number">ISSN</a> <a rel="nofollow" class="external text" href="https://www.worldcat.org/issn/0006-2510">0006-2510</a>. Retrieved on <span class="mw-formatted-date" title="2021-12-18">2021-12-18</span>.</cite>