Gaya APA
Geus, J., G., D., Agric, M., S. (1973).
Fertilizer Guide For The Tropics And Subtropics (Ed.2).
Jerman:
Centre D\'Etude De I\' Azote.
Gaya MLA
Geus, J., G., D., Agric, M., S..
Fertilizer Guide For The Tropics And Subtropics.
Ed.2
Jerman:
Centre D\'Etude De I\' Azote,
1973.
Text.