Oorspronklik: Bradbury, William Batchelder. The Solid Rock. Solid Rock. How Firm a Foundation. Bradbury, William Batchelder. How Firm.
Vertaling: Bradbury, William BATCHELDER. Die Solid Rock. Bradbury, William BATCHELDER. Koor SATB, klavier of orrel. Foncannon, Ellen.