APA-ийн эшлэл(7 дахь хэвлэлт)

Forrest, K. (2011). Metal that will not bend: National Union of Metalworkers of South Africa 1980-1995. Wits University Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Forrest, Kally. Metal That Will Not Bend: National Union of Metalworkers of South Africa 1980-1995. Johannesburg: Wits University Press, 2011.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Forrest, Kally. Metal That Will Not Bend: National Union of Metalworkers of South Africa 1980-1995. Wits University Press, 2011.