"ita" is short for Introduction to Analysis by Maxwell Rosenlicht, Dover (Mineola, New York, USA), 1986:
"This Dover edition, first published in 1986, is an unabridged and unaltered republication of the work first published by Scott Foresman and Company, Glenview, Illinois, in 1968." - This is from the page which faces the preface.
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Quotations are with permission - in green in the early work and in black in the newer work.
Citations are generally in the following form:
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