APA

Simpson B. J., Riley A. J, Concawe, Simpson B. J. & Riley A. J. (1997). Petroleum products. First aid emergency and medical advice. Brussels: Concawe.

Chicago

Simpson B J, Riley A. J, Concawe, Simpson B J and Riley A. J. 1997. Petroleum products. First aid emergency and medical advice. Brussels: Concawe.

Harvard

Simpson B. J., Riley A. J, Concawe, Simpson B. J. and Riley A. J. (1997). Petroleum products. First aid emergency and medical advice. Brussels: Concawe.

MLA

Simpson B J, Riley A. J, Concawe, Simpson B J and Riley A. J. Petroleum products. First aid emergency and medical advice. Brussels: Concawe. 1997.