Abandoned pits and quarries in Ontario.
By: A. G. McLellan, S. E. Yundt and M. L. Dorfman.
Contributors: Yundt, S. E.; Dorfman, M. L.
Publisher: s.n
Published: 1979
Place of publication: S.l
Notes: Ontario Geol. Surv. Misc. Paper 79. 36pp.

1