Portland cement
Subtitle: the Ontario Portland Cement Co. (Limited) works : Blue Lake, Ont. head office : Brantford, Canada.
Series: CIHM/ICMH Microfiche series = CIHM/ICMH collection de microfiches -- no. 99535
Publisher: s.n.
Published: 1991
Place of publication: [Ontario?
Language: eng
Format: Microform
Subjects: Ontario Portland Cement Co.; Portland cement.; Portland cement industry -- Ontario.
Notes: Cover title.

Filmed from a copy of the original publication held by the National Archives of Canada. Ottawa : Canadian Institute for Historical Microreproductions, 1991.

31 p. : ill. ; 21 cm.