References
- 1975 . Superintendent of Public Instruction Annual Report 1974–75 , 14 – 15 . Richmond , Va. : State Board of Education .
- Exline , Joseph D. 1973 . “A Study of National Trends in Earth Science Education and the Status of Earth Science Education in Virginia” , Ph.D. diss. University of Maryland 72 – 83 .
- Exline , Joseph D. “Upgrading the Teaching of Secondary Earth Science Through Improved Statewide Communications,” . Abstracts with Programs—The Geological Society of America . pp. 858 Denver , Colo.
- Batten , R. Wesley . 1976 . “Use of Processes by Earth Science Students, and Aspects of Their Achievement, Previous Science Curriculum and Educational and Instructional Experience of Their Teachers” University of Virginia , Ph.D. diss. 85
- Exline , Joseph D. 1975 . “Virginia Secondary Earth Science Education Needs Additional Emphasis to Remain a Viable Science Course,” . School Science and Mathematics , 22 ( no. 4 ) : 305 – 10 .
- Exline . “A Study of National Trends in Earth Science Education …,” 72 – 83 .