Yan, G. (2015). Ave marina: Meeting the seabirds of Tubbataha. Health & Home.
Cita Chicago (17th ed.)Yan, Gregg. "Ave Marina: Meeting the Seabirds of Tubbataha." Health & Home 2015.
Cita MLA (9th ed.)Yan, Gregg. "Ave Marina: Meeting the Seabirds of Tubbataha." Health & Home, 2015.
Atenció: Aquestes cites poden no estar 100% correctes.