Ryan, J., & Estefan, G. R. (2007). Soil and plant analysis laboratory manual (2nd. ed.). Scientific Publishers.
Chicago Style citaatRyan, John, en George Rashid Estefan. Soil and Plant Analysis Laboratory Manual. 2nd. ed. Jodhpur: Scientific Publishers, 2007.
MLA citatieRyan, John, en George Rashid Estefan. Soil and Plant Analysis Laboratory Manual. 2nd. ed. Scientific Publishers, 2007.
Let op: Deze citaties zijn niet altijd 100% accuraat.