APA-ийн эшлэл(7 дахь хэвлэлт)

Nyirenda Gibson, Ngwakwe Collins C., Ambe Cosmas M., & Faculty of Management, U. o. P. Environmental management practices and firm performance in a South African mining firm.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Nyirenda Gibson, Ngwakwe Collins C., Ambe Cosmas M., ба University of Primorska Faculty of Management. Environmental Management Practices and Firm Performance in a South African Mining Firm.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Nyirenda Gibson, et al. Environmental Management Practices and Firm Performance in a South African Mining Firm.