APA
Boyd D., . (1976). Normal freezing and thawing degree-days from normal monthly temperatures. Ottawa: National Research Council Canada. DBR paper nr 675 [Canadian Geotechnical Journal. Vol 13. 1976 nr 2, s 176-80].
Chicago
Boyd DW, . 1976. Normal freezing and thawing degree-days from normal monthly temperatures. Ottawa: National Research Council Canada. DBR paper nr 675 [Canadian Geotechnical Journal. Vol 13. 1976 nr 2, s 176-80].
Harvard
Boyd D., . (1976). Normal freezing and thawing degree-days from normal monthly temperatures. Ottawa: National Research Council Canada. DBR paper nr 675 [Canadian Geotechnical Journal. Vol 13. 1976 nr 2, s 176-80].
MLA
Boyd DW, . Normal freezing and thawing degree-days from normal monthly temperatures. Ottawa: National Research Council Canada. DBR paper nr 675 [Canadian Geotechnical Journal. Vol 13. 1976 nr 2, s 176-80]. 1976.