1. Annotated bibliography of quaternary shorelines : supplement 1965-1969 Author/Creator: Richards, Horace G. 1906-1984. (Horace Gardiner) Publication/Creation: Philadelphia, Pa. : Academy of Natural Sciences, 1970 Resource Type: Book Access & Availability: Loading
2. Illustrated fossils of the Georgia coastal plain Author/Creator: Richards, Horace G. 1906-1984. (Horace Gardiner) Publication/Creation: [Atlanta] : Georgia Dept. of Mines, Mining and Geology, [1969] Resource Type: Book Access & Availability: Loading
3. Catalogue of invertebrate fossil types at the Academy of Natural Sciences of Philadelphia Author/Creator: Richards, Horace G. 1906-1984. (Horace Gardiner) Publication/Creation: Philadelphia : Academy of Natural Sciences, 1968 Resource Type: Book Access & Availability: Loading
4. Annotated bibliography of Quaternary shorelines : 1945-1964 Author/Creator: Richards, Horace G. 1906-1984. (Horace Gardiner) Publication/Creation: Philadelphia : Academy of Natural Sciences, 1965 Resource Type: Book Access & Availability: Loading
5. Geology of the Delaware Valley Author/Creator: Richards, Horace G. 1906-1984. (Horace Gardiner) Publication/Creation: Philadelphia : Mineralogical Society of Pennsylvania, 1956 Resource Type: Book Access & Availability: Loading