| title | ISBN-13 | year of publication |
|---|---|---|
| Introduction to Human Ecology | 978-0-7575-8582-1 | 2012 |
| Population, Resources AND Environment: 2009-2010 Revised Printing | 978-0-7575-6978-4 | 2009 |
| Population, Resources AND Environment: 2010-2011 Revised Printing | 978-0-7575-8125-0 | 2010 |
| Population, Resources AND Environment: 2011-2012 Revised Printing | 978-0-7575-9120-4 | 2011 |
| Population, Resources AND Environment: 2012-2013 Revised Printing | 978-1-4652-0401-1 | 2012 |
| Population, Resources AND Environment: 2013-2014 Revised Printing | 978-1-4652-2404-0 | 2013 |
| Population, Resources and Environment: 2014-2015 Revised Printing | 978-1-4652-5656-0 | 2014 |
| Population, Resources and Environment: 2015-2016 Revised Printing | 978-1-4652-8417-4 | 2015 |
C.F. · C. G. · C. George · Clark G · G *** F · George F. · George F Clark