Cita APA (7th ed.)

Butler, M. J. A. (1987). Marine resource mapping: An introductory manual. Food and Agriculture Organization of the United Nations.

Cita Chicago (17th ed.)

Butler, Michael J. A. Marine Resource Mapping: An Introductory Manual. Rome: Food and Agriculture Organization of the United Nations, 1987.

Cita MLA (9th ed.)

Butler, Michael J. A. Marine Resource Mapping: An Introductory Manual. Food and Agriculture Organization of the United Nations, 1987.