APA-čujuhus (7. p.)
Crawford, J., & Doherty, L. (2012). Practical aspects of ECG recording. M&K Update.
Chicago-čujuhus (17. p.)
Crawford, Jacqui, juo Linda Doherty. Practical Aspects of ECG Recording. Cumbria [England]: M&K Update, 2012.
MLA-čujuhus (9. p.)
Crawford, Jacqui, juo Linda Doherty. Practical Aspects of ECG Recording. M&K Update, 2012.
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