Cita APA (7a ed.)

Drewry Shipping Consultants. (1991). Future development of the LPG and chemical gas trades. Drewry Shipping Consultants.

Cita Chicago Style (17a ed.)

Drewry Shipping Consultants. Future Development of the LPG and Chemical Gas Trades. London: Drewry Shipping Consultants, 1991.

Cita MLA (9a ed.)

Drewry Shipping Consultants. Future Development of the LPG and Chemical Gas Trades. Drewry Shipping Consultants, 1991.