APA

Ficarra P., Ficarra R., de Pasquale A., Monforte M. T. & Calabrò M. L. (19920415). High-performance liquid chromatography of flavonoids in Crataegus oxyacantha L. IV. Reversed-phase high-pressure liquid chromatography in flower, leaf and bud extractives of Crataegus oxyacantha L. : Farmaco (Societa chimica italiana : 1989).

Chicago

Ficarra P, Ficarra R, de Pasquale A, Monforte M T and Calabrò M L. 19920415. High-performance liquid chromatography of flavonoids in Crataegus oxyacantha L. IV. Reversed-phase high-pressure liquid chromatography in flower, leaf and bud extractives of Crataegus oxyacantha L. : Farmaco (Societa chimica italiana : 1989).

Harvard

Ficarra P., Ficarra R., de Pasquale A., Monforte M. T. and Calabrò M. L. (19920415). High-performance liquid chromatography of flavonoids in Crataegus oxyacantha L. IV. Reversed-phase high-pressure liquid chromatography in flower, leaf and bud extractives of Crataegus oxyacantha L. : Farmaco (Societa chimica italiana : 1989).

MLA

Ficarra P, Ficarra R, de Pasquale A, Monforte M T and Calabrò M L. High-performance liquid chromatography of flavonoids in Crataegus oxyacantha L. IV. Reversed-phase high-pressure liquid chromatography in flower, leaf and bud extractives of Crataegus oxyacantha L. : Farmaco (Societa chimica italiana : 1989). 19920415.