DSIR field guide
DSIR Pub
A.L. Poole and Nancy M. Adams
DSIR Pub. 1990 Rev. ed DSIR field guide
Available at 1 libraries
Catherine M. Wilson and David R. Given
DSIR Pub. 1989 DSIR field guide
Available at 4 libraries
Peter N. Johnson ; drawings by Pat A. Brooke
DSIR Pub. 1989 DSIR field guide , DSIR information series no. 167