APA (7. basım) Alıntı
Copper, P. (2004). Silurian (late Llandovery-Ludlow) atrypid brachiopods from Gotland, Sweden and the Welsh Borderlands, Great Britain. NRC Research Press.
Chicago Style (17. basım) Atıf
Copper, Paul. Silurian (late Llandovery-Ludlow) Atrypid Brachiopods from Gotland, Sweden and the Welsh Borderlands, Great Britain. Ottawa: NRC Research Press, 2004.
MLA (9th ed.) Atıf
Copper, Paul. Silurian (late Llandovery-Ludlow) Atrypid Brachiopods from Gotland, Sweden and the Welsh Borderlands, Great Britain. NRC Research Press, 2004.
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