by Douglas Pancoast...[et al. by Douglas Pancoast...[et al.] by Douglas Biber...[et al. by Douglas Biber...[et al.] Douglas Gunn...[et al. by Colin Barrow ... [et al. By Bo Arbogast...[et al. Douglas Ehninger,... [et al. by Alan Burton,...[et al. by Allan Ben...[et al.