Cita APA (7th ed.)

Kock, K. N. D., & Wolmarans, C. T. (2008). Invasive alien freshwater snail species in the Kruger National Park, South Africa. AOSIS.

Cita Chicago (17th ed.)

Kock, Kenné N. De, i Cornelius T. Wolmarans. Invasive Alien Freshwater Snail Species in the Kruger National Park, South Africa. AOSIS, 2008.

Cita MLA (9th ed.)

Kock, Kenné N. De, i Cornelius T. Wolmarans. Invasive Alien Freshwater Snail Species in the Kruger National Park, South Africa. AOSIS, 2008.