APA način citiranja

Loaiza, J., Valverde, R., Rodríguez, G., & Molina, J. (2004). Quantitative analyses of the main che mical constituents in the roots of Echinacea purpurea and E. angustifolia produced in Cos ta Rica.

Čikaški stil citiranja

Loaiza, Jorge, Roberto Valverde, Gerardo Rodríguez, i Jorge Molina. Quantitative Analyses of the Main Che Mical Constituents in the Roots of Echinacea Purpurea and E. Angustifolia Produced in Cos Ta Rica. 2004.

MLA način citiranja

Loaiza, Jorge, Roberto Valverde, Gerardo Rodríguez, i Jorge Molina. Quantitative Analyses of the Main Che Mical Constituents in the Roots of Echinacea Purpurea and E. Angustifolia Produced in Cos Ta Rica. 2004.