Beatrice Collins
Teachers' guide and testbook to accompany A world view- Teachers' guide and testbook to accompany A world view by Clarence W. Sorensen
- Teachers' guide and testbook to accompany Old world lands
- Teachers' guide and testbook to accompany Old world lands, Barrows, Parker, Sorensen
- Teachers' guide and testbook to accompany Our big world
- Teachers' guide and testbook to accompany Our big world, Barrows, Parker, Sorensen
- Teachers' guide and testbook to accompany The American continents
- Teachers' guide and testbook to accompany The American continents, Barrows, Parker, Sorensen, 1954 revision