APA-ийн эшлэл(7 дахь хэвлэлт)

Layard, R., Metcalf, D., & Nickell, S. (1978). The Effect of Collective Bargaining on Relative and Absolute Wages.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Layard, R., D. Metcalf, ба S. Nickell. The Effect of Collective Bargaining on Relative and Absolute Wages. 1978.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Layard, R., et al. The Effect of Collective Bargaining on Relative and Absolute Wages. 1978.