APA (7th ed.) Citation

Elston, R. C., & Johnson, W. D. (1990). Principios de Bioestadistica.

Chicago Style (17th ed.) Citation

Elston, Robert C., and Willian D. Johnson. Principios De Bioestadistica. 1990.

MLA (9th ed.) Citation

Elston, Robert C., and Willian D. Johnson. Principios De Bioestadistica. 1990.

Warning: These citations may not always be 100% accurate.