Singh, A. (1981). Attitudes of secondary school teachers towards specific topics in traffic education. Transport and Road Research Laboratory.
Cita Chicago (17th ed.)Singh, Amarjit. Attitudes of Secondary School Teachers Towards Specific Topics in Traffic Education. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1981.
Cita MLA (9th ed.)Singh, Amarjit. Attitudes of Secondary School Teachers Towards Specific Topics in Traffic Education. Transport and Road Research Laboratory, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.