Discrete Mathematical Models with Applications to Social, Biological and Environmental Problems, Prentice-Hall, Englewood Cliffs, NJ, 1976.
Update on publication status
This book was out of print for awhile. It is now back in print as part of
Prentice-Hall's "on demand" publication program. The Prentice-Hall
representatives and even their websites sometimes still report this as
out of print. Don't believe them. Please let me know if you encounter
this kind of misinformation.