A guide to Minitab, 1995: CIP t.p. (Elizabeth Farber, Bucks County Community College)

Elementary statistics, 1999: CIP t.p. (Betsy Farber) p. [xiii] (BA in mathematics from Penn State University; MA in mathematics from Trenton State College; Prof. at Bucks CCC, Newtown, PA)

Phone call to pub., May 05, 1999 (Betsy Farber is same as Elizabeth Farber; not known if she will continue to write only under the name Betsy Farber)

Wikipedia, viewed Sept. 17, 2015 (Trenton State College, now the College of New Jersey, is in Ewing, N.J.; Pennsylvania State University is located in the Borough of State College)

NJ.com, via WWW, viewed Sept. 17, 2015 (Elizabeth "Betsy" Farber, professor of mathematics at Bucks County Community College, born Jan. 9, 1943 as Elizabeth Goldberg in Brooklyn, N.Y.; died Feb. 19, 2013 at Yardley, Penn.) http://obits.nj.com/obituaries/trenton/obituary.aspx?pid=163208026