B S I. (1971). UDC 66/66.09 Chemical and related industries chemical technology BS 1000(66/66.09): 1971. B S I.
Chicago Style citaatB S I. UDC 66/66.09 Chemical and Related Industries chemical Technology BS 1000(66/66.09): 1971. London: B S I, 1971.
MLA citatieB S I. UDC 66/66.09 Chemical and Related Industries chemical Technology BS 1000(66/66.09): 1971. B S I, 1971.
Let op: Deze citaties zijn niet altijd 100% accuraat.