APA

Lanik A. B., Ecker A. J., OMV (Viena), World Petroleum Congress (11th. : 1983 : London), Ecker A. J. & OMV (Viena).Diesel fuel. : .

Chicago

Lanik Alfred B, Ecker Alfred J, OMV (Viena), World Petroleum Congress (11th. : 1983 : London), Ecker Alfred J and OMV (Viena).Diesel fuel. : .

Harvard

Lanik A. B., Ecker A. J., OMV (Viena), World Petroleum Congress (11th. : 1983 : London), Ecker A. J. and OMV (Viena).Diesel fuel. : .

MLA

Lanik Alfred B, Ecker Alfred J, OMV (Viena), World Petroleum Congress (11th. : 1983 : London), Ecker Alfred J and OMV (Viena).: . .