APA (7th ed.) Citation

MacLennan, W. J., Shepherd, A. N., & Stevenson, I. H. (1984). The Elderly. Springer London.

Chicago Style (17th ed.) Citation

MacLennan, W. J., A. N. Shepherd, and I. H. Stevenson. The Elderly. London: Springer London, 1984.

MLA (9th ed.) Citation

MacLennan, W. J., et al. The Elderly. Springer London, 1984.