Published in Raptor Research, in 1977, in volume 11, issue 3, pages 49-58

Created: 2017-04-08, modified: 2017-04-08

Published in Raptor Research, in 1977, in volume 11, issue 3, pages 59-62

Created: 2017-04-08, modified: 2017-04-08

Published in Raptor Research, in 1977, in volume 11, issue 3, pages 62-66

Created: 2017-04-08, modified: 2017-04-08

Published in Raptor Research, in 1977, in volume 11, issue 3, pages 66

Created: 2017-04-08, modified: 2017-04-08

Published in Raptor Research, in 1977, in volume 11, issue 3, pages 67-71

Created: 2017-04-08, modified: 2017-04-08

Published in Raptor Research, in 1977, in volume 11, issue 3, pages 71-72

Created: 2017-04-08, modified: 2017-04-08

Published in Raptor Research, in 1977, in volume 11, issue 3, pages 73

Created: 2017-04-08, modified: 2017-04-08

Published in Raptor Research, in 1977, in volume 11, issue 4, pages 87-96

Created: 2017-04-08, modified: 2017-04-08

Published in Raptor Research, in 1977, in volume 11, issue 1-2, pages 1-46

Created: 2017-04-08, modified: 2017-04-08

Published in Raptor Research, in 1977, in volume 11, issue 1-2, pages 28-48

Created: 2017-04-08, modified: 2017-04-08