Credits, legal, and licensing information for materials used from third-party sources

FSI edit

This book uses some materials from Greek: Basic Course, Volume 1, Obolensky, Sapountzis, and Sapountzis, 1967, Foreign Service Institute, Washington, DC. This book is in the public domain because it is a product of the U.S. government; its title page states that the Foreign Service Institute, Department of State, is the publisher, and that "this work was compiled and published with the support of the Office of Education, Department of Health, Education, and Welfare, United States of America." Also, it was published without a copyright notice in 1967, and any work is in the public domain if it was published in the United States before 1989 without a copyright notice.