Oregon State University. Extension Service/Sea Grant Program; Oregon. State Parks and Recreation Department([Corvallis, Or.] : Oregon State University Extension Service, 1991-08)
Oregon State University. Extension Service/Sea Grant Program; Jacobson, Robert W. (Robert Warren); Heikkila, Paul; Hilderbrand, Kenneth S.([Corvallis, Or.] : Oregon State University Extension Service, Sea Grant Program, 1987-07)