For early titles from City Light Books, first editions usually have no additional printings listed on the copyright page, but a bibliography may be required. Source: Internet
From 1936 on, first editions state either "First Edition" or "First Printing" on the copyright page. Source: Internet
First editions from Bloomsbury state either “First Published (year)” on the copyright page or “First US Edition (year)” on the copyright page along with a sequence of numbers with “1” present. Source: Internet
An explanatory block of text appears on the facsimile copyright page of original FEL books. Source: Internet
First editions from Doubleday, Doran & Co. state "First Edition" on the copyright page. Source: Internet
Pollan interviews old and young researchers and "guides," and, with a long disclaimer on the copyright page, he describes his transformative guided personal experiences with LSD, psilocybin mushrooms and 5-MeO-DMT (The Toad). Source: Internet