APA

Heinze P., Concawe & Heinze P. (1999). Proposal for revision of volatility classes in EN 228 specification in light of EU fuels directive. Brussels: Concawe.

Chicago

Heinze P, Concawe and Heinze P. 1999. Proposal for revision of volatility classes in EN 228 specification in light of EU fuels directive. Brussels: Concawe.

Harvard

Heinze P., Concawe and Heinze P. (1999). Proposal for revision of volatility classes in EN 228 specification in light of EU fuels directive. Brussels: Concawe.

MLA

Heinze P, Concawe and Heinze P. Proposal for revision of volatility classes in EN 228 specification in light of EU fuels directive. Brussels: Concawe. 1999.