APA ציטוט

Burton, C. J. (1969). Variation studies of some phacopid trilobites of Eruasia and North West Africa.

Chicago Style (17th ed.) Citation

Burton, Christopher J. Variation Studies of Some Phacopid Trilobites of Eruasia and North West Africa. 1969.

ציטוט MLA

Burton, Christopher J. Variation Studies of Some Phacopid Trilobites of Eruasia and North West Africa. 1969.