APA (7th ed.) Citation

Roberts, I. P. (1911). The fertility of the land: A summary sketch of the relationship of farm-practice to the maintaining and increasing of the productivity of the soil. The Macmillan company; [etc.,etc.].

Chicago Style (17th ed.) Citation

Roberts, Isaac Phillips. The Fertility of the Land: A Summary Sketch of the Relationship of Farm-practice to the Maintaining and Increasing of the Productivity of the Soil. New York: The Macmillan company; [etc.,etc.], 1911.

MLA (9th ed.) Citation

Roberts, Isaac Phillips. The Fertility of the Land: A Summary Sketch of the Relationship of Farm-practice to the Maintaining and Increasing of the Productivity of the Soil. The Macmillan company; [etc.,etc.], 1911.