Cita APA (7th ed.)

Oreffo, R., Bord, S., & Triffitt, J. (1998). Skeletal progenitor cells and ageing human populations.

Cita Chicago (17th ed.)

Oreffo, R., S. Bord, i J. Triffitt. Skeletal Progenitor Cells and Ageing Human Populations. 1998.

Cita MLA (9th ed.)

Oreffo, R., et al. Skeletal Progenitor Cells and Ageing Human Populations. 1998.