McDonald, P. M. (1990). Mulches aid in regenerating California and Oregon forests: Past, present and future. USDA Pacific Southwest Forest & Range Experiment Station.
Chicago Style (17th ed.) CitationMcDonald, Philip M. Mulches Aid in Regenerating California and Oregon Forests: Past, Present and Future. Berkeley, Calif: USDA Pacific Southwest Forest & Range Experiment Station, 1990.
MLA (9th ed.) CitationMcDonald, Philip M. Mulches Aid in Regenerating California and Oregon Forests: Past, Present and Future. USDA Pacific Southwest Forest & Range Experiment Station, 1990.
Warning: These citations may not always be 100% accurate.