Styl cytowania APA

Winkens, R., Guldemond, F., Hoppener, P., Kragten, H., & van Leeuwen, Y. (2009). Pectus excavatum, not always as harmless as it seems. BMJ Publishing Group.

Styl cytowania Chicago

Winkens, Ron, Frank Guldemond, Paul Hoppener, Hans Kragten, i Yvonne van Leeuwen. Pectus Excavatum, Not Always As Harmless As It Seems. BMJ Publishing Group, 2009.

Styl cytowania MLA

Winkens, Ron, et al. Pectus Excavatum, Not Always As Harmless As It Seems. BMJ Publishing Group, 2009.

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