APA
Burger K, Smit H P, . (2002). Substitution between natural and synthetic : Which way ? About availability and strategies. : Natuur Rubber.
Chicago
Burger K, Smit H P, . 2002. Substitution between natural and synthetic : Which way ? About availability and strategies. : Natuur Rubber.
Harvard
Burger K, Smit H P, . (2002). Substitution between natural and synthetic : Which way ? About availability and strategies. : Natuur Rubber.
MLA
Burger K, Smit H P, . Substitution between natural and synthetic : Which way ? About availability and strategies. : Natuur Rubber. 2002.