Angel

1.1. In English Dictionaries and Encyclopedias

1.2. In Bible Dictionaries and Encyclopedias

• Angel | Easton’s Bible Dictionary
• Angel | Dictionary of Biblical Imagery
• Angel | Harper’s Bible Dictionary
• Angel | Baker Encyclopedia of the Bible
• Introduction | Dictionary of Deities and Demons in the Bible DDD
• List of Angels in the Book of Revelation Revelation 1:13–18 | Halley’s Bible Handbook

1.3. In Theological Dictionaries and Encyclopedias

• Angel | Evangelical Dictionary of Biblical Theology

1.4. In Theological Journals

2.1. In Systematic Theologies

2.2. In Other Books

• TREATISE ON THE ANGELS | Summa Theologica
• Contents | Every Angel in the Bible
• Contents | Angels: Elect and Evil