1. Some Petrological Aspects of the Harbour Seam, Sydney Coalfield, Nova Scotia;Cameron,1961
2. A depositional study of the Harbour seam, Sydney coalfield, Nova Scotia;Hacquebard;Geol. Surv. Can., Pap. 65-15,1965
3. A depositional study of the Harbour seam, Sydney coalfield, Nova Scotia;Hacquebard;Geol. Surv. Can., Pap. 65-15,1964
4. Petrography and carbonization characteristics of some western Canadian coals;Cameron;Am. Chem. Soc., Adv. Chem. Ser.,1965
5. The development of coal petrology in North America;Berry,1968