This book was published in 1930 and has a copyright notice.
Books published in the U.S.A. between 1923 and 1964 require a copyright notice to claim copyright, otherwise they are in the public domain. If they do have a copyright notice included, copyright needs to be renewed after 28 years.
Consequently, this first edition should have had its copyright renewed in 1958. The U.S. copyright office renewal records do not show a renewal for these editions from 1957 to 1959. This book is therefore out of copyright in the U.S.A.
This site is hosted on a server in The Netherlands. Under Dutch copyright law, no copyright protection exists if the copyright has expired in the country it was originally published in. The Dutch Copyright Act (Auteurswet 1912) Chapter III, article 42 states:
This book is therefore also in the public domain in The Netherlands.
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