APA (7th ed.) Citation

RäSäNEN, M., LAITINEN, T., KAPRIO, J., KOSKENVUO, M., & LAITINEN, L. A. (1997). Hay fever, asthma and number of older siblings — a twin study. Blackwell Publishing Ltd.

Chicago Style (17th ed.) Citation

RäSäNEN, M., T. LAITINEN, J. KAPRIO, M. KOSKENVUO, and L. A. LAITINEN. Hay Fever, Asthma and Number of Older Siblings — a Twin Study. Oxford, UK: Blackwell Publishing Ltd, 1997.

MLA (9th ed.) Citation

RäSäNEN, M., et al. Hay Fever, Asthma and Number of Older Siblings — a Twin Study. Blackwell Publishing Ltd, 1997.