|Online content:||Free online material via The Online Books Page|
|More information:||Wikipedia article; Wikidata|
|First issue:||November 1, 1951 (v. 1 no. 1)|
|First renewed issue:||no issue renewals found in registered works database|
|First renewed contribution in:||no contribution renewals found in registered works database|
|Page responsibility:||John Mark Ockerbloom (ockerblo (at) pobox (dot) upenn (dot) edu)|
|Last updated:||September 21, 2019|
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