Humphrey, C. (1929). Timber storage conditions in the eastern and southern states with reference to decay problems. United States Government Printing Office.
Cytowanie według stylu Chicago (wyd. 17)Humphrey, C.J. Timber Storage Conditions in the Eastern and Southern States with Reference to Decay Problems. Washington: United States Government Printing Office, 1929.
Cytowanie według stylu MLA (wyd. 9)Humphrey, C.J. Timber Storage Conditions in the Eastern and Southern States with Reference to Decay Problems. United States Government Printing Office, 1929.
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