The Proper Study of Mankind an Anthology of Essays (Hardcover) → Paperback, Hardcover ISBN-13: 9780374237509 ISBN-10: 0374237506 Genres: History, Literature & Fiction, Nonfiction ? The Proper Study of Mankind an Anthology of Essays (Paperback) → Hardcover ISBN-13: 9780374527174 ISBN-10: 0374527172 Genres: Literature & Fiction, Nonfiction 1 |