Elements/ objects : n essential or characteristic parts of something abstract: n material things that can be seen and touched

MLA

Brooker, Graeme, and Sally Stone. Elements/ Objects : N Essential Or Characteristic Parts of Something Abstract: N Material Things That Can Be Seen and Touched. Lausanne: Ava Academia, 2010.

APA

Brooker, G., & Stone, S. (2010). Elements/ objects : n essential or characteristic parts of something abstract: n material things that can be seen and touched. Lausanne: Ava Academia.

Chicago

Brooker, Graeme, and Sally Stone. Elements/ Objects: N Essential Or Characteristic Parts of Something Abstract: n Material Things That Can Be Seen and Touched. Lausanne: Ava Academia, 2010.