APA način citiranja

Ibrahim, M. A. (1990). Response of dwarf elephant grass (Pennisetum purpureum Schum) to different frequencies and intensities of grazing in the humid zone of Guápiles, Costa Rica.

Čikaški stil citiranja

Ibrahim, Muhammad Akbar. Response of Dwarf Elephant Grass (Pennisetum Purpureum Schum) to Different Frequencies and Intensities of Grazing in the Humid Zone of Guápiles, Costa Rica. 1990.

MLA način citiranja

Ibrahim, Muhammad Akbar. Response of Dwarf Elephant Grass (Pennisetum Purpureum Schum) to Different Frequencies and Intensities of Grazing in the Humid Zone of Guápiles, Costa Rica. 1990.