File:Operations Control from 1941 pamphlet.jpg

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or

• it was first published outside the United States (and not published in the U.S. within 30 days) and
• it was first published before 1978 without complying with U.S. copyright formalities or after 1978 without copyright notice and
• it was in the public domain in its home country on the URAA date ( January 1, 1996 for most countries).

This work may still be copyrighted in other countries.

For background information, see the explanations on Non-U.S. copyrights. Note: in addition to this statement, there must be a statement on this page explaining why the work is in the public domain in the U.S. (for the first case) or why it was PD on the URAA date in its source country (second case). Additionally, there must be verifiable information about previous publications of the work.

This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer.

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