APA (7th ed.) Citation

Hammer, M. 'Core' and 'extended' social networks in relation to health and illness. Elsevier.

Chicago Style (17th ed.) Citation

Hammer, M. 'Core' and 'Extended' Social Networks in Relation to Health and Illness. Amsterdam: Elsevier.

MLA (9th ed.) Citation

Hammer, M. 'Core' and 'Extended' Social Networks in Relation to Health and Illness. Elsevier.

Warning: These citations may not always be 100% accurate.