APA (7e ed.) Bronvermelding

(1891). Vermont state Agricultural experiment station: научное издание. Bulletin No 23, march 1891, Analyses of Fertilizers Licensed for Sale in the State of Vermont in the Year 1891.

Chicago (17e ed.) Bronvermelding

Vermont State Agricultural Experiment Station: научное издание. Bulletin No 23, March 1891, Analyses of Fertilizers Licensed for Sale in the State of Vermont in the Year 1891. 1891.

MLA (9e ed.) Bronvermelding

Vermont State Agricultural Experiment Station: научное издание. Bulletin No 23, March 1891, Analyses of Fertilizers Licensed for Sale in the State of Vermont in the Year 1891. 1891.