Velasquez, G. T. (1989). Phycological research in the Philippines. National Academy of Science and Technology.
Citazione stile Chigago Style (17a edizione)Velasquez, Gregorio T. Phycological Research in the Philippines. Bicutan, Taguig: National Academy of Science and Technology, 1989.
Citatione MLA (9a ed.)Velasquez, Gregorio T. Phycological Research in the Philippines. National Academy of Science and Technology, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.