User talk:2601:4C1:4000:2B00:319B:F49C:8EA9:1091

You were looking at the Transaction reprint of the book. If you look at the 1964 edition (p. xv of the Preface), you will see that he explicitly cited those three debts. In the reprint the citation is on p. xix.

I knew Abe Kaplan. This bio is generally accurate. I would only add that it is arguable to say that he was "the first philosopher" (even the first "American philosopher") to undertake that critique, and I'm pretty sure he would have agreed with this reservation. Abe was a confident man but not an egoist. 2601:4C1:4000:2B00:319B:F49C:8EA9:1091 (talk) 14:16, 1 July 2019 (UTC)Lawrence Hazelrigg