Masonry Magazine February 1975 Page. 11
February 1975
COMING EVENTS
1975
April 6-11. Annual Convention, American Concrete Institute, Sheraton Boston Hotel, Boston, Mass. Contact ACI, Box 19150 Redford Station, 22400 W. 7 Mile Rd., Detroit. Mich. 48219.
April 14-18. National Meetin