Παραπομπή APA

Drewry Shipping Consultants. (1999). Product tankers: A kinder gentler recovery. London: Drewry Shipping Consultants.

Παραπομπή Chicago Style

Drewry Shipping Consultants. Product Tankers: A Kinder Gentler Recovery. London: Drewry Shipping Consultants, 1999.

Παραπομπή MLA

Drewry Shipping Consultants. Product Tankers: A Kinder Gentler Recovery. London: Drewry Shipping Consultants, 1999.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.