Iglesia Adventista del Séptimo Día. (1978). School Bells and Gospel Trumpets: A documentary history of Seventh-day Adventist Ministry education in North America. Adventist Heritage Publications, Loma Linda University Library.
Παραπομπή σε μορφή Chicago (17η εκδ.)Iglesia Adventista del Séptimo Día. School Bells and Gospel Trumpets: A Documentary History of Seventh-day Adventist Ministry Education in North America. Loma LInda, California: Adventist Heritage Publications, Loma Linda University Library, 1978.
Παραπομπή σε μορφή MLA (9th εκδ.)Iglesia Adventista del Séptimo Día. School Bells and Gospel Trumpets: A Documentary History of Seventh-day Adventist Ministry Education in North America. Adventist Heritage Publications, Loma Linda University Library, 1978.
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