Scientific Digest. Hearst Corporation.
Chicago Style (17th ed.) CitationScientific Digest. US: Hearst Corporation.
MLA (9th ed.) CitationScientific Digest. Hearst Corporation.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.
Scientific Digest. Hearst Corporation.
Chicago Style (17th ed.) CitationScientific Digest. US: Hearst Corporation.
MLA (9th ed.) CitationScientific Digest. Hearst Corporation.