Dyfyniad APA

(2020). U- and E-Service, Science and Technology. Springer Berlin Heidelberg.

Dyfyniad Arddull Chicago

U- and E-Service, Science and Technology. Springer Berlin Heidelberg, 2020.

Dyfyniad MLA

U- and E-Service, Science and Technology. Springer Berlin Heidelberg, 2020.

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