Dyfyniad APA

Federal funds for research, development, and other scientific activities. National Science Foundation.

Dyfyniad Arddull Chicago

Federal Funds for Research, Development, and Other Scientific Activities. Washington: National Science Foundation.

Dyfyniad MLA

Federal Funds for Research, Development, and Other Scientific Activities. National Science Foundation.

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