Cita APA (7th ed.)

Meldrum, J. S. (2016). Clean snowmobile challenge- 1: The early years, 4-stroke engines make their debut. Society of Automotive Engineers.

Cita Chicago (17th ed.)

Meldrum, Jay S. Clean Snowmobile Challenge- 1: The Early Years, 4-stroke Engines Make Their Debut. Warrendale, Pennsylvania: Society of Automotive Engineers, 2016.

Cita MLA (9th ed.)

Meldrum, Jay S. Clean Snowmobile Challenge- 1: The Early Years, 4-stroke Engines Make Their Debut. Society of Automotive Engineers, 2016.