APA-viite

(1999). Brief advice to parents does not protect asthmatic children from passive smoking. British Medical Journal.

Chicago-tyylinen lähdeviittaus

Brief Advice to Parents Does Not Protect Asthmatic Children From Passive Smoking. British Medical Journal, 1999.

MLA-viite

Brief Advice to Parents Does Not Protect Asthmatic Children From Passive Smoking. British Medical Journal, 1999.

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