Dyfyniad APA

Piper, P. J., & Krell, R. D. Advances in the understanding and treatment of asthma.

Dyfyniad Arddull Chicago

Piper, Priscilla J., and Robert D. Krell. Advances in the Understanding and Treatment of Asthma.

Dyfyniad MLA

Piper, Priscilla J., and Robert D. Krell. Advances in the Understanding and Treatment of Asthma.

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