Cita APA (7th ed.)
Rubber world. [Lippincott & Peto, etc.].
Cita Chicago (17th ed.)
Rubber World. [Akron, OH, etc.]: [Lippincott & Peto, etc.].
Cita MLA (9th ed.)
Rubber World. [Lippincott & Peto, etc.].
Atenció: Aquestes cites poden no estar 100% correctes.