Sindhøj, E. (2001). Elevated atmospheric CO₂ in a semi-natural grassland. Swedish University of Agricultural Sciences.
Chicago Style (17th ed.) CitationSindhøj, Erik. Elevated Atmospheric CO₂ in a Semi-natural Grassland. Uppsala: Swedish University of Agricultural Sciences, 2001.
MLA引文Sindhøj, Erik. Elevated Atmospheric CO₂ in a Semi-natural Grassland. Swedish University of Agricultural Sciences, 2001.
警告:這些引文格式不一定是100%准確.