Allen, R. M. (1976). Gas exchange of detached needles of southern pine and certain hybrids. Dept. of Agriculture, Forest Service, Southern Forest Experiment Station.
Chicago Style (17th ed.) CitationAllen, Robert M. Gas Exchange of Detached Needles of Southern Pine and Certain Hybrids. [New Orleans, La.]: Dept. of Agriculture, Forest Service, Southern Forest Experiment Station, 1976.
MLA (9th ed.) CitationAllen, Robert M. Gas Exchange of Detached Needles of Southern Pine and Certain Hybrids. Dept. of Agriculture, Forest Service, Southern Forest Experiment Station, 1976.
Warning: These citations may not always be 100% accurate.