APA

Lupton, .Principios elementales de agricultura cientifica / N.T. Lupton. New York and London : Appleton and Company, 1924: .

Chicago

Lupton, .Principios elementales de agricultura cientifica / N.T. Lupton. New York and London : Appleton and Company, 1924: .

Harvard

Lupton, .Principios elementales de agricultura cientifica / N.T. Lupton. New York and London : Appleton and Company, 1924: .

MLA

Lupton, .New York and London : Appleton and Company, 1924: . .