Dyfyniad APA

Beller, J. (1989). Experimenting with Plants. Englewood Cliffs, New Jersey: Prentice-Hall.

Dyfyniad Arddull Chicago

Beller, Joel. Experimenting With Plants. Englewood Cliffs, New Jersey: Prentice-Hall, 1989.

Dyfyniad MLA

Beller, Joel. Experimenting With Plants. Englewood Cliffs, New Jersey: Prentice-Hall, 1989.

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