Gaya APA

Walck, J, L, [, A. (2012). Seed germination and seedling development ecology in world-wide populations of a circumboreal Tertiary relict (2012: pls007). Oxford: Oxford University Press.

Gaya MLA

Walck, Jeffrey, L., [et, Al.]. "Seed germination and seedling development ecology in world-wide populations of a circumboreal Tertiary relict". 2012: pls007 Oxford: Oxford University Press, 2012. e-journal.