APA (7th ed.) Citation

Abdul Razak, M. N., & Jaafar, S. (1992). Model railway speed controller / Mohd Nizam Abdul Razak and Shahar Jaafar.

Chicago Style (17th ed.) Citation

Abdul Razak, Mohd Nizam, and Shahar Jaafar. Model Railway Speed Controller / Mohd Nizam Abdul Razak and Shahar Jaafar. 1992.

MLA (9th ed.) Citation

Abdul Razak, Mohd Nizam, and Shahar Jaafar. Model Railway Speed Controller / Mohd Nizam Abdul Razak and Shahar Jaafar. 1992.

Warning: These citations may not always be 100% accurate.