Cita APA

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.

Cita MLA

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

Atenció: Aquestes cites poden no estar 100% correctes.