APA (7a ed.)

Meyne, J., Baker, R. J., Hobart, H. H., Hsu, T. C., Ryder, O. a., Ward, O. G., Willey, J. e., Wurster Hill, D. H., Yates, T. L., & Moyzis, R. K. (1990). Distribution of non-telomeric sites of the (TTAGGG)n telomeric sequence in vertebrate chromosome. Chromosoma.