Gaya APA

Williams, L., Wilkins, . (2011). Ecg Interpretation 5E Made Incredibly Easy (Edisi 5). Amerika: Lippincott Williams & Wilkins.

Gaya MLA

Williams, Lippincott., Wilkins, . "Ecg Interpretation 5E Made Incredibly Easy". Edisi 5 Amerika: Lippincott Williams & Wilkins, 2011. Text.