Darvill, P. A., Stirling, W. R., & Stubley, T. (1978). The expanding years (1. printed, 5. impression.). Schofield & Sims.
Citazione stile Chigago Style (17a edizione)Darvill, P. A., W. R. Stirling, e Trevor Stubley. The Expanding Years. 1. printed, 5. impression. Huddersfield: Schofield & Sims, 1978.
Citatione MLA (9a ed.)Darvill, P. A., et al. The Expanding Years. 1. printed, 5. impression. Schofield & Sims, 1978.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.