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...ns about subjects and topics, please use the '''[[Wikipedia:Reference desk|Reference Desk]]'''. Volunteers at these locations will respond to your questions as | name = Wikipedia help pages

'''To cite a book with a credited author''' '''To cite a book with no credited author'''

...original 'for _, val in pairs do' and a similar version that used ipairs. With the pairs version the order of evaluation could not be guaranteed. With the ipairs version, a nil value would terminate