Iron & coal.
National Association of Colliery Managers.
Association of Colliery Managers in India.
London : Industrial Newspapers (Fuel & Metallurgical), Ltd.,
1961.
"The iron and coal trades' review."
Organ of the National Association of Colliery Managers and the Assoication of Colliery Managers in India.
Coal trade
Iron industry and trade
Iron & coal trades review
Steel & coal