Dyfyniad APA

Cajamarca, T., & Segarra, K. Superman, Christopher Reeve, and stem cell research.

Dyfyniad Arddull Chicago

Cajamarca, Tania, and Karina Segarra. Superman, Christopher Reeve, and Stem Cell Research.

Dyfyniad MLA

Cajamarca, Tania, and Karina Segarra. Superman, Christopher Reeve, and Stem Cell Research.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.