Published in Journal of The Washington Academy of Sciences, in 1977, in volume 67, pages 3-11

Created: 2014-01-30, modified: 2014-01-30

Published in Journal of The Washington Academy of Sciences, in 1977, in volume 67, pages 16-33

Created: 2014-01-30, modified: 2014-01-30

Published in Journal of The Washington Academy of Sciences, in 1977, in volume 67, pages 38-41

Created: 2012-08-30, modified: 2012-08-30

Published in Journal of The Washington Academy of Sciences, in 1977, in volume 67, pages 42-48

Created: 2012-08-30, modified: 2012-08-30

Published in Journal of The Washington Academy of Sciences, in 1977, in volume 67, pages 60-75

Created: 2014-01-30, modified: 2014-01-30

Published in Journal of The Washington Academy of Sciences, in 1977, in volume 67, pages 144-154

Created: 2012-08-30, modified: 2012-08-30

Published in Journal of The Washington Academy of Sciences, in 1977, in volume 67, pages 155-156

Created: 2014-01-30, modified: 2014-01-30