Cita APA

Estefan, G., & Ryan, J. (2012). Soil and plant analysis laboratory manual (2.). Scientific.

Chicago Edition Citation

Estefan, George, i Jobhn Ryan. Soil and Plant Analysis Laboratory Manual. 2. India: Scientific, 2012.

Cita MLA

Estefan, George, i Jobhn Ryan. Soil and Plant Analysis Laboratory Manual. 2. Scientific, 2012.