APA

Christensen R. J., Barker J. A., .Paradigmas. s,l: Charthouse.

Chicago

Christensen Ray J, Barker Joel A, .Paradigmas. s,l: Charthouse.

Harvard

Christensen R. J., Barker J. A., .Paradigmas. s,l: Charthouse.

MLA

Christensen Ray J, Barker Joel A, .s,l: Charthouse. .