APA (7e ed.) Bronvermelding

Rubio, R. M. (2019). A senior citizen establishes a farm at the age of 80. Agriculture.

Chicago (17e ed.) Bronvermelding

Rubio, Rex M. "A Senior Citizen Establishes a Farm at the Age of 80." Agriculture 2019.

MLA (9e ed.) Bronvermelding

Rubio, Rex M. "A Senior Citizen Establishes a Farm at the Age of 80." Agriculture, 2019.