Unal, S. Et Al. 1999. Effects of coal oxidation on calorific value. ENERGY SOURCES , vol.21, no.3 , 269-273.

Unal, S., Yalcin, Z., & Piskin, S., (1999). Effects of coal oxidation on calorific value. ENERGY SOURCES , vol.21, no.3, 269-273.

Unal, S, ZG Yalcin, And Sabriye PİŞKİN. "Effects of coal oxidation on calorific value," ENERGY SOURCES , vol.21, no.3, 269-273, 1999

Unal, S Et Al. "Effects of coal oxidation on calorific value." ENERGY SOURCES , vol.21, no.3, pp.269-273, 1999

Unal, S. Yalcin, Z. And Piskin, S. (1999) . "Effects of coal oxidation on calorific value." ENERGY SOURCES , vol.21, no.3, pp.269-273.

@article{article, author={S Unal Et Al. }, title={Effects of coal oxidation on calorific value}, journal={ENERGY SOURCES}, year=1999, pages={269-273} }