Cita APA (7th ed.)

Barber, J., Davies, M., & Hills, D. (2011). Frictional elastic contact with periodic loading.

Cita Chicago (17th ed.)

Barber, JR, M. Davies, i D. Hills. Frictional Elastic Contact with Periodic Loading. 2011.

Cita MLA (9th ed.)

Barber, JR, et al. Frictional Elastic Contact with Periodic Loading. 2011.