National Conference of South African Surveyors & National Conference of South African Surveyors. Proceedings of the National Conference of South African Surveyors. National Conference of South African Surveyors.
芝加哥风格引文National Conference of South African Surveyors 与 National Conference of South African Surveyors. Proceedings of the National Conference of South African Surveyors. Cape Town: National Conference of South African Surveyors.
MLA引文National Conference of South African Surveyors 与 National Conference of South African Surveyors. Proceedings of the National Conference of South African Surveyors. National Conference of South African Surveyors.
警告：这些引文格式不一定是100％准确.