Cita APA (7a ed.)

Sales, E. K., Cena, R. L., & Butardo, N. G. (2012). Hehealogue : a catalogue of Hevea germplasm in the Philippines: Diversity in Hevea clones. [publisher not identified].

Cita Chicago Style (17a ed.)

Sales, Emma K., Romulo L. Cena, y Nilda G. Butardo. Hehealogue : A Catalogue of Hevea Germplasm in the Philippines: Diversity in Hevea Clones. [Place of publication not identified]: [publisher not identified], 2012.

Cita MLA (9a ed.)

Sales, Emma K., et al. Hehealogue : A Catalogue of Hevea Germplasm in the Philippines: Diversity in Hevea Clones. [publisher not identified], 2012.