APA
Plafkin J. L., . (1989). Rapid bioassessment protocols for use in streams and rivers : benthic, macroinvertebrates and fish. Washington: Environmental Protection Agency (EPA).
Chicago
Plafkin James L, . 1989. Rapid bioassessment protocols for use in streams and rivers : benthic, macroinvertebrates and fish. Washington: Environmental Protection Agency (EPA).
Harvard
Plafkin J. L., . (1989). Rapid bioassessment protocols for use in streams and rivers : benthic, macroinvertebrates and fish. Washington: Environmental Protection Agency (EPA).
MLA
Plafkin James L, . Rapid bioassessment protocols for use in streams and rivers : benthic, macroinvertebrates and fish. Washington: Environmental Protection Agency (EPA). 1989.