APA

OIson D., DeFrain j., . (2000). Marrige and the Family Diversity and Strengths. london: Mayfield publshing.

Chicago

OIson David, DeFrain john, . 2000. Marrige and the Family Diversity and Strengths. london: Mayfield publshing.

Harvard

OIson D., DeFrain j., . (2000). Marrige and the Family Diversity and Strengths. london: Mayfield publshing.

MLA

OIson David, DeFrain john, . Marrige and the Family Diversity and Strengths. london: Mayfield publshing. 2000.