Scotland, R. (1992). SYSTEMATICS, SIMILARITY AND ACANTHACEAE POLLEN MORPHOLOGY.
Cita Chicago (17th ed.)Scotland, R. SYSTEMATICS, SIMILARITY AND ACANTHACEAE POLLEN MORPHOLOGY. 1992.
Cita MLA (9th ed.)Scotland, R. SYSTEMATICS, SIMILARITY AND ACANTHACEAE POLLEN MORPHOLOGY. 1992.
Atenció: Aquestes cites poden no estar 100% correctes.